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  • What are the necessaries for Metallization of Ceramics?
    Oct 28, 2024
    Metallized ceramics are ideal for many critical applications due to their unique performance advantages. However, to fully realize their performance, control of the surface flatness and roughness of the ceramic part is critical. Impact Factors: Flatness and roughness of ceramic surface l First, let's take an in-depth look at why surface flatness and roughness of metallized ceramics are so important. In electronic devices, such as the packaging of integrated circuits, surface flatness directly affects the quality of the connection between the chip and the substrate and the efficiency of heat transfer. If the surface is not flat, it may lead to localized stress concentrations, affecting the reliability and lifetime of the device. Roughness is also critical, too rough a surface will increase the loss of signal transmission and reduce the performance of electronic components.   l What level of surface flatness and roughness can manufacturers currently control in the production of metallized ceramics? This depends on a variety of factors, including the quality of raw materials, the precision of the processing technology and the advanced degree of production equipment.   l For advanced manufacturers, through the use of precision grinding, polishing process and high-precision processing equipment, can control the surface flatness of metallized ceramics in the micron or even sub-micron level. Take common alumina metallized ceramics as an example, excellent manufacturers can achieve a surface flatness deviation of less than 5 microns, which is a very good indicator in the field of high-precision electronic packaging.   l In terms of roughness, after fine treatment, the surface roughness of metallized ceramics can reach Ra0.1 micron or less. Such a low roughness surface helps to reduce scattering and reflection of electronic signals, improving the accuracy and stability of signal transmission.   l In order to achieve such a high level of control, manufacturers need to work on several aspects. Starting with the selection of raw materials, it is important to ensure that the ceramic powder is of uniform particle size and high purity. In the molding process, advanced molding techniques, such as dry press molding and injection molding, are used to obtain uniform and dense blanks. And in the metallization process, strict control of the deposition rate and thickness uniformity of the metal layer is also the key to ensure the surface quality.   Inspection In addition, the quality inspection link is also indispensable. Through the use of high-precision surface profilers, atomic force microscopes and other equipment, the surface flatness and roughness of the metallized ceramics are accurately measured and analyzed, so that problems can be detected and adjustments can be made in a timely manner. However, there are still some challenges to achieving a higher level of surface control. For example, as the performance of ceramic materials continues to improve and application scenarios expand, the requirements for surface quality are becoming more demanding. At the same time, the cost control in the production process is also a factor that manufacturers need to consider, how to ensure high quality while reducing production costs, is a problem that needs to be continuously explored and optimized.   Conclusion In short, the level of control of surface flatness and roughness of metallized ceramics is an important indicator of the manufacturers' production technology and capabilities. With the continuous progress of science and technology and market demand, I believe that manufacturers will continue to innovate and improve the process, to bring us better quality, more precise metallized ceramic products, to promote the development of electronics, aerospace and other fields to a new height.
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  • What are the test methods and standards for metallized ceramics?
    Oct 28, 2024
    In modern technology, metallized ceramics are widely used in electronics, aerospace, medical, and many other critical fields due to their unique combination of properties, such as high strength, high heat resistance, good electrical insulation, and electrical conductivity from metallization. However, rigorous reliability testing of metallized ceramics is essential to ensure that they work stably and reliably under a variety of demanding conditions. Thermal Cycling Test: First, thermal cycling testing is a common method. Samples of metallized ceramics are subjected to repeated high and low temperature cycling environments to observe whether cracks, delamination, or performance degradation occur between the metal layer and the ceramic substrate. This is because in real-world applications, metallized ceramics may experience drastic changes in temperature, and thermal cycling testing can simulate this to assess their ability to withstand thermal shock. Mechanical strength testing: Mechanical strength testing is also essential. The strength and toughness of metallized ceramics are determined through tensile, bending, compression and other tests to determine whether they can maintain structural integrity and stable performance when subjected to external forces. In addition, vibration and impact tests will be conducted to simulate the dynamic environment during the operation of the equipment to test the vibration and impact resistance of metallized ceramics. Electrical testing: Electrical testing is also critical in assessing reliability. Measurement of resistance, capacitance, inductance and other parameters in different conditions to check whether the conductive properties of the metallized layer is stable, with or without short-circuit, disconnection and other issues. For metallized ceramics used in high-frequency or microwave applications, it is also necessary to test the transmission characteristics of the corresponding frequency band. Environmental reliability test: Environmental reliability testing is also an important part. For example, the sample will be exposed to moisture, salt spray, corrosive gases and other harsh environments, to observe the corrosion and oxidation of the metallized layer, as well as the impact on the overall performance. In terms of standards, organizations such as the International Electrotechnical Commission (IEC) and the American Society for Testing and Materials (ASTM) have developed a series of relevant standards. These standards specify in detail the conditions, methods, equipment requirements and guidelines for determining the results of the tests. Different industries and application scenarios may have specific standard requirements, such as in the aerospace field, where standards are often more stringent to ensure product reliability in extreme environments. Companies may also set more stringent standards internally based on the characteristics of their products and the needs of their customers. These standards may be further refined and strengthened in terms of test items, test conditions, or passing judgments. It is worth noting that the reliability test is not a one-time job, but throughout the entire process of research and development, production and quality control of metallized ceramics. Through continuous optimization of test methods and follow strict standards, can effectively improve the quality and reliability of metallized ceramics, for its wide range of applications in various fields to provide a solid guarantee. In short, understanding and mastering the reliability of metallized ceramics test methods and standards, for manufacturers, research and development personnel as well as users are of great significance. Only through scientific and rigorous testing, to ensure that the metallized ceramics in the complex working environment to play a stable and reliable performance, and promote the continuous development of related technology and innovation.
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  • The Global Pioneer of Low-Carbon Environmental Protection - UHV Vacuum Interrupter Ceramic Housings
    Nov 09, 2023
    What is a vacuum interrupter? Vacuum interrupter, also known as vacuum switch tube, is the core component of high and medium voltage power switch, its main function is to make the high and medium voltage circuit cut off the power supply after the excellent insulation of the vacuum in the tube can quickly quench the arc and suppress the current, avoid accidents and accidents, mainly used in power transmission and distribution control system. It is also used in metallurgy, mining, petroleum, chemical industry, railway, broadcasting, communication, industrial high frequency heating and other power distribution systems. It has the characteristics of energy saving, material saving, fire prevention, explosion-proof, small size, long life, low maintenance cost, reliable operation and no pollution. The vacuum interrupter is divided into circuit breaker interrupter and load switch interrupter from the purpose, the circuit breaker interrupter is mainly used in the power department substation and power grid facilities, and the load switch interrupter is mainly used in the power grid end users.     Introduction and application of vacuum tube ceramics The main structural parts of the vacuum arc extinguishing chamber are insulation shell, static and static cover plate, contacts, bellows, shielding cover, static and static conductive rod, guide sleeve, etc., respectively, according to the corresponding function of different materials, vacuum brazing process is used to seal the corresponding parts into a closed vacuum chamber, with the vacuum excellent insulation performance and arc extinguishing performance, after cutting off the power can quickly extinguish arc and suppress the current. Among them, the insulation shell is generally selected AI2O3 ceramic shell, and the alumina ceramic material has a series of advantages such as excellent electrical insulation performance, high mechanical strength, and it is not easy to decompose and evaporate at high temperature, which can ensure the air tightness of the vacuum arc extinguishing chamber in the production and operation process and is not easy to damage.       Why use UHV vacuum tube ceramics? Sulfur hexafluoride (SF6) is a potent greenhouse gas with a global warming potential index (GWP) 23,900 times that of carbon dioxide and an atmospheric lifetime of 3,200 a, which is widely used in high-voltage switchgear. The massive use of SF6 has brought a huge potential threat to the problem of greenhouse effect. Limiting its use in power switchgear is an effective way to promote the development of green power industry.       Best alternative solutions for SF6 switches: Based on the global low-carbon and environmental protection energy strategy needs of SF6 removal, our company has developed a series of UHV vacuum tube ceramics used to replace SF6 switches, mainly used in 126KV, 145KV, 252KV vacuum arc extinguishing chamber, committed to practicing the "double carbon" strategy, low-carbon green fluorine-free environmental protection. Our UHV vacuum tube ceramic products have excellent electrical performance, good air tightness, high sealing strength, high reliability, etc., and have been supplied to the world's well-known power industry companies. The company has supplied more than 10 million products to the global power transmission and distribution field, and no major quality accidents have occurred so far, and has won an excellent reputation in the global market.     Xiang Ceramics has many years of experience in advanced ceramics production and manufacturing, equipped with high-end production facilities, and possesses the advanced technology level that leads the domestic counterparts. We are also the first-class supplier of various famous enterprises around the world. We support product customization and welcome your inquiry via below ways: Email: joicetse@xcsawork.com  WhatsApp / Mobile: 0086+15616337419 WeChat: joicetse Skype: Joice.tse
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  • What are the advantages of Aluminum Nitride Ceramic Crucible?
    Oct 18, 2023
    Crucible made of refractory material is used to melt some things, such as steel, iron or even glass, aluminum and so on. The crucible is in various shapes, square, round and pot shape, which can be customized according to the drawings, and the size can be stereotyped at will, and the common crucible materials are high-purity alumina, corundum, graphite, zirconia, aluminum nitride and so on.   1.Why choose aluminum nitride ceramic crucible? Aluminum nitride in ceramics at room temperature and high temperature have good corrosion resistance, stability, in 2450 ℃ before decomposition, can be used as high temperature refractory materials, such as crucibles, casting molds. Aluminum nitride ceramics cannot be copper, aluminum, silver and other substances wetting as well as resistance to aluminum, iron, aluminum alloy dissolution, can be a good container and high-temperature protective layer, such as thermocouple protection tubes and sintering appliances; can also resist high-temperature corrosive gases, such as used in the preparation of aluminum nitride ceramics electrostatic chuck this important semiconductor manufacturing equipment, high-end parts. Due to aluminum nitride on gallium arsenide and other molten salts performance stability, aluminum nitride crucible instead of glass to synthesize gallium arsenide semiconductor, can eliminate the pollution from the silicon in the glass, to obtain high purity gallium arsenide semiconductor.     2. Characteristics of aluminum nitride ceramic crucible 1)High thermal conductivity (about 230W/m-K), close to BeO and SiC, more than 5 times of Al2O3. (2) Thermal expansion coefficient (4.5×10-6°C) matches Si (3.5~4×10-6°C) and GaAs (6×10-6°C). (3) Excellent various electrical properties (dielectric constant, dielectric loss, body resistivity, dielectric strength); (4) Good mechanical properties, higher flexural strength than Al2O3 and BeO ceramics, and can be sintered at atmospheric pressure. (5) High purity and non-toxic. Aluminum nitride is an important structural ceramic material. It is a super-hard substance, resistant to wear and oxidation at high temperatures. Its hardness is second only to diamond, boron carbide and cubic boron nitride, and aluminum nitride ceramics rank fourth in inorganic materials. At present, the high-density aluminum nitride obtained by hot pressing and sintering method has high strength and good antioxidant property, and it can be kept without deformation under high temperature, so it has excellent performance in the crucible material.     3. How is the aluminum nitride ceramic crucible made? The preparation process of aluminum nitride ceramic crucible: powder synthesis, molding, sintering. Powder synthesis: Aluminum nitride powder is used as the raw material for the preparation of final ceramic products, and its purity, particle size, oxygen content and the content of other impurities have an important influence on the thermal conductivity of the subsequent finished products, subsequent sintering and forming process, and each production step will decide whether the performance of the product is excellent or not. Aluminum nitride powders are synthesized by the following methods: direct nitriding, carbothermal reduction, self-propagating high-temperature synthesis, and chemical vapor deposition. Forming: Dry pressure or isostatic pressure Sintering: Aluminum nitride crucibles can be subjected to temperatures of about 1300°C in air without overall oxidation, although the process begins after 700°C. The process can take place at temperatures of up to 700°C in a vacuum. In a vacuum, alumina ceramics decompose at 1800°C and melt at 2200°C, protected by an inert atmosphere. In general, alumina ceramic products operate at temperatures of 800°C in air, 1700°C in vacuum and 2100°C in an inert atmosphere. CNC Finishing: To process aluminum nitride ceramics with 2200° sintering temperature, you need to use ceramic CNC for finishing, ceramic CNC can process aluminum nitride ceramic crucible with high precision. Because the hardness of aluminum nitride ceramics is very high, advanced equipment and professional processing technology will determine the precision of aluminum nitride ceramic crucible.   As a material that can withstand high temperature for a long time and has super high resistance to thermal vibration, aluminum nitride ceramic is undoubtedly the best choice for crucible material. Xiang Ceramics has many years of experience in advanced ceramics production and manufacturing, equipped with high-end production facilities, and possesses the advanced technology level that leads the domestic counterparts. We are also the first-class supplier of various famous enterprises around the world. We support product customization and welcome your inquiry via below ways:   Email: joicetse@xcsawork.com  WhatsApp / Mobile: 0086+15616337419 WeChat: joicetse Skype: Joice.tse    
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  • What are the uses of alumina ceramics in new energy vehicles?
    Sep 04, 2023
    The application of alumina ceramics in new energy vehicles is of great significance and has broad prospects. Its excellent performance and unique advantages, such as high-temperature oxidation resistance, low density, etc., make alumina ceramics play an increasingly important role in the manufacture of new energy vehicles.     The main applications of alumina ceramics in new energy vehicles:   Application in batteries   a. Electrolyte material In the electric vehicle battery, the electrolyte material is one of the key factors that determine the battery performance and safety. #Alumina ceramic electrolyte has high ionic conductivity and high-temperature resistance, which can effectively improve the safety and energy density of the battery. At present, researchers are studying how to improve the micro-structure of alumina ceramic electrolyte and optimize ion channels to further improve its ionic conductivity and stability.   b. Battery separator The separator is another key component in the electric vehicle battery, whose main function is to separate the positive and negative electrodes to prevent short circuits. Alumina ceramic separators have the advantages of high strength, high toughness, high chemical stability, etc., which can effectively improve the life and safety of batteries. In addition, #alumina ceramic separators can also achieve fast charging, thereby improving the charging efficiency of batteries. Battery negative electrode material is another important component in electric vehicle batteries, which determines the energy density and charge-discharge efficiency of the battery. Alumina ceramic negative electrode materials have high capacity and good cycle performance, which can effectively improve the charge-discharge efficiency and life of batteries. In addition, alumina ceramic negative electrode materials also have good corrosion resistance and high-temperature stability, which can provide a better safety guarantee for batteries.   Other applications   c. Automobile brake discs  Alumina ceramic brake discs have the characteristics of high strength, high wear resistance, high corrosion resistance, etc., which can effectively improve the stability and safety of braking. In addition, alumina ceramic brake discs also have good thermal stability, can withstand high-temperature friction, reduce brake friction loss, and improve the reliability and life of braking.   d. Automobile sensors Alumina ceramic sensors have the characteristics of high sensitivity, high stability, high corrosion resistance, etc., which can be widely used in various sensors of automobiles, such as temperature sensors, pressure sensors, etc. Alumina ceramic sensors can improve the measurement accuracy and stability of sensors and provide more accurate data support for automobile control systems.   Requirements for alumina ceramics in new energy vehicles   With the continuous development of electric vehicle technology, higher requirements have been put forward for the performance and process of alumina ceramics. High strength and toughness: New energy vehicles will be subjected to various complex stresses during driving. Therefore, it is required that alumina ceramics have sufficient strength and toughness to cope with various complex working environments. High temperature resistance and corrosion resistance: New energy vehicles will generate a large amount of heat during operation and will also come into contact with various chemical substances. Therefore, it is required that alumina ceramics have high-temperature resistance and corrosion resistance. Good processing performance: Due to a large amount of mechanical processing required in the manufacturing process of new energy vehicles. Therefore, it is required that alumina ceramics have good processing performance for ease of manufacturing and assembly.   New energy vehicles have become an important part of the automobile market with strong development potential and competitiveness. With the continuous development of new energy vehicle technology comes higher quality requirements for alumina materials such as ceramic matrix flexural strength, impact resistance fatigue strength modulus elasticity electrical insulation properties as well as bonding strength with Metallization. Xiang Ceramics has many years of experience in #advanced ceramics such as alumina ceramics production technology. The company has a variety of advanced production equipment and an efficient quality management system. It has become an important supplier to many well-known companies worldwide. We support product customization to meet strict application requirements from clients.   Please contact us for your inquiry needs: Email: joicetse@xcsawork.com WhatsApp / Mobile: 0086+15616337419 WeChat: joicetse Skype: Joice.tse
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  • The Best Structural Ceramic-Zirconia Ceramic and its applications
    Jul 19, 2023
    Zirconia ceramics are widely used in various industries because of their excellent mechanical, thermal and chemical properties. The purpose of this paper is to give an overview of #zirconia ceramics, with emphasis on its application and significance in different fields.   Characteristics of zirconia ceramics   1. High strength and hardness: Zirconia ceramics have high mechanical strength and hardness, suitable for applications with high durability requirements.   2. Excellent thermal stability: Zirconia ceramics have excellent thermal stability and can withstand high temperatures without obvious degradation. This feature allows it to be used in extreme environments.   3. Low thermal conductivity: Zirconia ceramics have low thermal conductivity, so they can be used in applications requiring heat insulation.   4. Excellent chemical resistance Zirconia ceramics have excellent chemical resistance and can resist corrosive environments and harsh chemical reactions. Applications of zirconia ceramics 1. Dental and medical applications: Zirconia ceramics are widely used in dentistry and plastic surgery. Zirconia ceramics are biocompatible, aesthetically excellent, wear and corrosion resistant and can be used in crowns, dental implants and artificial joints.   2. Aerospace industry: Zirconia ceramics have high strength, low weight and excellent thermal stability, so it is widely used in the aerospace industry. They can be used in components such as turbine blades, combustion chambers and heat shields.   3. Structural components: #Zirconia ceramics can be used as structural components in automotive, electronic and mechanical industries. Due to its high wear resistance, thermal stability, and chemical resistance, zirconia ceramics can be used in a variety of components, including cutting tools, bearings, valves, pistons, and more.   Conclusion   Zirconia ceramics are a versatile material that can be widely used in many industries. With excellent properties such as high strength, thermal stability and chemical resistance, they are ideal materials for a variety of harsh environments. The continuous research and development of zirconia ceramics will continue to discover new application areas and expand its potential to promote technological progress in medical, aerospace, energy and other fields.   Xiang Ceramics has many years of Zirconia Ceramic production and technical experience, can provide customized product services according to customer needs. If you need zirconia ceramic products, please contact us in time.   Email: joicetse@xcsawork.com  WhatsApp / Mobile: 0086+15616337419 WeChat: joicetse Skype: Joice.tse    
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  • One of Advanced Ceramic-Aluminum Oxide Ceramics
    Jul 27, 2023
    Aluminum oxide ceramics, also known as #alumina ceramics, are advanced ceramic materials widely used in various industries due to their excellent mechanical, thermal, and electrical properties. The main component of aluminum oxide ceramics is aluminum oxide (Al2O3), which is a highly stable and chemically inert compound. Xiang Ceramics produces aluminum oxide ceramic products, including #99% high-purity aluminum oxide ceramics, which exhibit high hardness, wear resistance, and excellent thermal conductivity. Among them, 99% high-purity aluminum oxide ceramics offer even stronger and superior performance. Based on the various properties of aluminum oxide, its applications are as follows: Cutting tools: Aluminum oxide ceramic cutting tools possess extremely high hardness and wear resistance, enabling efficient cutting of various materials. Therefore, they are commonly used in mechanical machining. Wear-resistant components: In industries that require high wear resistance, aluminum oxide ceramics can be used to produce bearings, sealing components, liners, and other wear-resistant parts. Biomedical applications: Aluminum oxide ceramics exhibit biocompatibility and chemical inertness, making them ideal for medical implants, dentures, and surgical instruments. Electrical insulation materials: Aluminum oxide ceramics offer excellent electrical insulation properties, making them suitable for use as insulation components in electrical systems and devices. Thermal conductivity: Aluminum oxide ceramics demonstrate relatively high thermal conductivity. Depending on their specific composition and purity, they are well-suited for applications that require efficient heat dissipation, heat transfer, and thermal management. Aluminum oxide ceramic heat sinks are widely used in electronic devices such as power modules, microprocessors, and LED. Aluminum oxide ceramics, as heating elements, are typically used in industrial furnaces, kilns, and heating systems that require stable and uniform heat distribution. From heat sinks for electronic devices to insulators and heating elements, aluminum oxide ceramics provide reliable and effective solutions for thermal management in various industries and technologies. High-purity aluminum oxide ceramic substrates: These substrates are widely used in the electronics industry, especially for thin-film deposition in integrated circuits and electronic packaging. Their high purity, excellent thermal performance, and electrical properties ensure stability in demanding electronic applications. High-purity aluminum oxide #semiconductor ceramics: Aluminum oxide ceramics can be used as substrates and packaging for semiconductor devices. They offer high thermal conductivity, electrical insulation, and dimensional stability, enabling efficient heat dissipation and electrical isolation in semiconductor applications. Xiang Ceramics has developed ceramic mechanical arms and antistatic ceramic products for semiconductor equipment. Conclusion Aluminum oxide ceramics, including high-purity aluminum oxide ceramics, have proven to be widely used and reliable materials in various industries. The unique properties of aluminum oxide ceramics make them suitable for a wide range of applications, from cutting tools and wear-resistant components to electrical insulation, thermal management, and biomedical devices. Ongoing research and development in aluminum oxide ceramics continue to expand their potential applications and drive technological advancements in numerous fields.   If you have further inquiries or interesting in Aluminum Oxide Ceramics or 99% High Purity Alumina Ceramic, please don't hesitate to contact us. Email: joicetse@xcsawork.com  WhatsApp / Mobile: 0086+15616337419 WeChat: joicetse Skype: Joice.tse          
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  • What is the Aluminum Nitride Ceramics (AIN)?
    Jul 24, 2023
    #Aluminum Nitride ceramic is a new type of ceramic material with excellent comprehensive properties, with excellent thermal conductivity, reliable electrical insulation, low dielectric constant and dielectric loss, non-toxic and silicon matching thermal expansion coefficient and a series of excellent characteristics, is considered to be a new generation of highly integrated semiconductor substrate and electronic devices ideal packaging materials. In addition, aluminum nitride ceramics can be used as crucible for melting non-ferrous metals and semiconductor materials gallium arsenide, evaporation boat, thermocouple protection tube, high temperature insulation parts, and can be used as high temperature corrosion resistant structural ceramics, transparent aluminum nitride ceramic products, so it has become a kind of inorganic materials with wide application prospects. From aluminum nitride powder to various aluminum nitride ceramic shaped parts, aluminum nitride mechanical arms for semiconductor equipment, #aluminum nitride ceramic heaters for semiconductor equipment, aluminum nitride ceramic substrates and their extended DBC, DPC, AMB and HTCC, Xiang Ceramics has strong technical and production advantages. Our main aluminum nitride product categories and application areas are as follows:   1. AIN Ceramic Machined parts Because of its excellent hardness and wear resistance, aluminum nitride ceramics are widely used in machining parts manufacturing in all walks of life. However, the precision processing difficulty of aluminum nitride ceramic materials is actually relatively large, mainly because aluminum nitride ceramics have two kinds of brittle and hard material characteristics, so it causes great trouble to CNC machining, and it is necessary to use ceramic special engraving and milling machine to process aluminum nitride ceramics. Xiang Ceramics is equipped with a number of high-end ceramic machining equipment, the product processing precision is high, recognized by the majority of customers. In addition, these aluminum nitride ceramic components can be used in cutting tools, wear parts and high temperature furnace fixtures. The high thermal conductivity of aluminum nitride ceramics ensures efficient heat dissipation and is therefore suitable for demanding applications.   2. AIN Substrates / AIN Sheets / AIN Plates    2.1 Aluminum nitride ceramic substrate has excellent thermal conductivity, thermal expansion coefficient close to silicon, high mechanical strength, good chemical stability and environmental protection and non-toxic, is considered to be a new generation of thermal substrate and electronic device packaging ideal material, very suitable for mixed power switch packaging and microwave vacuum tube package shell material, but also the ideal material for large-scale integrated circuit substrate. This is also the main use of #AlN ceramic substrates.   2.2 Aluminum nitride ceramic substrate and its extension process   a. Direct bonding copper (DBC): DBC technology uses a metallization process to bond aluminum nitride ceramics to copper. This composite material combines the excellent properties of aluminum nitride ceramics with the high electrical and thermal conductivity of copper. #DBC substrates are widely used in power electronic devices such as insulated gate bipolar transistors (IGBTs) and high-power diodes.   b. Direct Copper plating (DPC): The DPC Substrate is similar to the DBC substrate but uses different bonding techniques. DPC technology is the direct plating of copper on the surface of aluminum nitride ceramics. This process does not require a separate metallization step. The DPC substrate has better thermal management and electrical performance, making it suitable for high-power applications.   c. AMB: AMB (Active Metal Brazing) active brazing technology is a process technology in which Ag-based solder containing active elements Ti and Zr is wetted and reacted at the interface of ceramics and metals at a high temperature of about 800℃, so as to achieve heterogeneous bonding between ceramics and metals. Aluminum nitride ceramic substrates are also widely used in IGBT modules of new energy vehicles.   d. High temperature co-fired ceramics (HTCC): HTCC is a multi-layer ceramic technology that combines aluminum nitride ceramics with other functional materials such as resistors, capacitors and conductors. HTCC substrates undergo a series of printing, stacking and co-firing processes to form complex integrated circuits. These substrates have excellent electrical properties and are widely used in high frequency and high-power applications.   Conclusion Aluminum nitride ceramics are widely used in various industries for their excellent properties, and the introduction of machined parts, substrates and extension processes (such as DBC, DPC, AMB and HTCC, etc.) has expanded the application range of aluminum nitride ceramics. Ongoing research and development in this area will continue to open up new possibilities. If you need to know more product details, please contact us through the following ways.   Email: joicetse@xcsawork.com  WhatsApp / Mobile: 0086+15616337419 WeChat: joicetse Skype: Joice.tse  
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  • Two Ways to know Silicon Nitride Ceramic and its Application
    Jul 22, 2023
    Silicon nitride ceramics are crystal structures composed of silicon (Si) and nitrogen (N) atoms and are highly engineered materials. It has unique comprehensive properties including high strength, excellent thermal stability, super wear resistance and excellent corrosion resistance, etc., and has been widely concerned in all walks of life because of its excellent performance. The production of #silicon nitride ceramics mainly includes various shapes of silicon nitride ceramics machined parts, silicon nitride ceramic substrates and their extended substrates metallized to meet the needs of specific applications in various industrial links.   1. Silicon nitride ceramic structure   1.1. Silicon nitride ceramic bearings: #Silicon nitride bearings are widely used in mechanical systems requiring high speed and high temperature operation. Compared with traditional materials, silicon nitride bearings can effectively reduce friction and wear, extend service life and improve efficiency.   1.2. Silicon nitride cutting tools: Silicon nitride cutting tools are known for their superior hardness and heat resistance. #Silicon nitride tools are widely used in metal processing such as milling, turning and drilling to provide high precision machining and extend tool life.   1.3. Silicon nitride seals and components: Silicon nitride seals and components are used in harsh environments that require excellent chemical resistance and high temperature resistance. They are used in industries such as aerospace, automotive and chemical processing.   1.4 Silicon nitride ceramic parts for solar energy applications Mainly used in polycrystalline silicon reduction furnace electrode inside and outside insulation ring, insulation sleeve, heat insulation ring, heat insulation sleeve, tail gas cover and thermocouple protection tube.   2. Silicon nitride ceramic substrate and AMB (Active Metal Bonding) process:   2.1. Substrate manufacturing:   The preparation of silicon nitride ceramic substrate combines powder processing, molding and sintering technology. This results in a dense, robust substrate with excellent electrical and thermal properties. 2.2 Silicon nitride AMB (Active Metal Bonding)   Compared with DBC ceramic substrate, #AMB ceramic substrate has higher bonding strength and hot and cold cycling characteristics. At present, with the rapid development of power electronics technology, the high-power device control module on high-speed rail has formed a huge demand for the key material of IGBT module packaging - ceramic copper clad plate, especially the silicon nitride AMB substrate has gradually become the mainstream application. In addition, in wind energy, solar energy, heat pump, hydropower, biomass energy, green building, new energy equipment, electric vehicles, rail transit and other important fields, AMB substrate has also begun to get more and more applications.   Conclusion   Silicon nitride ceramics have unique properties and a wide range of applications and have become an important material in many industries. Paving the way for technological advances in fields ranging from electronics to aerospace.   Xiang Ceramics specializes in the production of silicon nitride ceramic balls, silicon nitride ceramic machined parts, silicon nitride ceramic bare pieces and AMB pieces, and provides product customization services. If you have any demand for the product, please send your questions or consultation information to us through the following contact ways.   Email: joicetse@xcsawork.com  WhatsApp / Mobile: 0086+15616337419 WeChat: joicetse Skype: Joice.tse  
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  • Ceramic Metallization Technology and Application
    Jul 18, 2023
    Mo-Mn metallization process is one of the most common metallization processes used in Xiang Ceramics for special-shaped parts. Molybdenum manganese #ceramic metallization is a process that introduces molybdenum and manganese elements into ceramic materials to enhance their properties and give them metallic characteristics. Through this metallization treatment, metallized ceramics can have the excellent characteristics of ceramics and the characteristics of metal conductivity, thermal conductivity, etc., so that it has a wide range of applications in many fields. Molybdenum manganese ceramic metallization technology mainly includes two steps:  1. The first is to form a metal coating on the surface of the ceramic, usually using chemical plating or physical vapor deposition methods.  2. Through heat treatment, the metal coating and the ceramic matrix are diffused with each other to form a metallized layer, so that it is firmly combined with the ceramic material and is used for the metal sealing of the customer's end products. Our metallized products have high sealing strength, stable quality in bending resistance, tensile strength, air tightness and other properties, and have won the favor of the majority of users. Main application areas: At present, our #metallized ceramics are mainly used for client vacuum brazing, such as electric power vacuum fire chamber; X-ray tube for security; Medical care and new energy and other industrial chain needs.  All in all, molybdenum manganese ceramic metallization is a technology that can combine ceramic materials with metal properties. It has important applications in the electrical, electronic, medical and energy fields, supporting technological progress and innovation in various industries. Conclusion: Ceramic metal coatings have many advantages in enhancing properties and expanding ceramic applications. Due to the wide variety of metallization processes, manufacturers can customize coatings according to specific requirements. Metallized ceramics are used across multiple industries, enabling advances in electronics, thermal management, wear protection, and biomedical engineering. Continuous research and development in the field of #ceramic metal coatings holds great promise for future technological advances and innovative applications.   If you have further questions or inquiries, please don't hesitate to contact us.  Email: joicetse@xcsawork.com  WhatsApp / Mobile: 0086+15616337419 WeChat: joicetse Skype: Joice.tse      
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  • The Introduction and Applications of Ceramic-Metal Brazed Joints
    Jul 11, 2023
    Ceramic-metal brazing is a specialized joining technique that allows for the seamless fusion of ceramics and metals. This process enables the creation of strong and reliable joints, making it invaluable in various industries where the unique properties of both ceramics and metals are required. In this article, Xiang Ceramics will explore the basic principles of #ceramic-to-metal brazing and discuss its wide range of applications based on many years of experience in production and R&D.  1. Ceramic-Metal Brazed Joints Ceramic-metal brazed joints are created by heating a combination of ceramic and metal components with a suitable brazing material. The brazing material, often a filler alloy compatible with both the ceramic and metal, melts and forms a metallurgical bond at the interface, effectively joining the two materials. The brazed joint maximizes the mechanical strength and thermal compatibility between ceramics and metals, offering a range of unique advantages. 2. Advantages of Ceramic-Metal Brazed Joints · High Strength: #Ceramic-metal brazed joints exhibit high tensile and shear strength, making them suitable for demanding applications where mechanical integrity is critical. · Thermally Compatible: Unlike traditional adhesive bonding methods, ceramic-metal brazed joints maintain their strength and integrity at high temperatures, allowing for applications in thermal management systems or high-temperature environments. · Hermetic Seal: The metallurgical bond created during brazing ensures a hermetic seal, making ceramic-metal brazed joints ideal for applications requiring gas-tight or vacuum seals. · Electrical Conductivity: Certain ceramic-metal combinations can provide electrical conductivity, expanding the possibilities for electronic and electrical applications. 3.  Applications of Ceramic-Metal Brazed Joints · Electronics: Ceramic-metal brazed joints are widely used in the electronics industry. They enable the integration of electronic components with ceramic substrates, providing electrical connectivity and mechanical support. · Aerospace: The high strength and thermal compatibility of ceramic-metal brazed joints make them extensively used in the aerospace industry. Applications include turbine blades, engine components, and heat exchangers. · Automotive: The automotive industry benefits from ceramic-metal brazed joints in applications such as exhaust systems, catalytic converters, and sensors. The joints provide excellent thermal resistance and structural integrity. · Medical: Ceramic-metal brazed joints find applications in medical devices, such as implants and prosthetics, due to their biocompatibility, strength, and corrosion resistance. · Energy: Ceramic-metal brazed joints play a vital role in energy conversion and storage systems. They are used in solid oxide fuel cells (SOFCs), solar cells, and battery assemblies. Conclusion Ceramic-metal brazing provides a universal and reliable method for joining ceramic and metal parts. The ceramic metal brazed parts produced by Xiang Ceramics were shown high strength, good thermal compatibility, and usually have electrical conductivity, etc. These are the key points of ceramic - metal brazing joints which used in various industries. Our #ceramic metal sealing parts are widely used in electronics, aerospace, automotive, medical and energy. With the continuous development of the era of science and technology, ceramic-metal brazing will undoubtedly continue to find new applications in emerging fields.   If you have further inquiries or interesting in ceramic metal seals, please don't hesitate to contact us.  Email: joicetse@xcsawork.com  WhatsApp / Mobile: 0086+15616337419 WeChat: joicetse Skype : Joice.tse
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