Ceramic-To-Metal/Feedthroughs
Ceramic brazing refers to the connection between metal and ceramic materials. It is used in sealing and can also be called ceramic feedthrough. The one used for vacuum sealing, vacuum observation windows, vacuum electrodes, and vacuum standard parts is vacuum feedthrough.
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Ceramic To Metal
Feedthroughs
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Feedthrough
We provide you with custom-made ceramic-to-metal brazed components also known as feedthroughs. According to the requirements of use, metal and ceramic are connected together. Through more than ten years of research and exploration, we have summarized a unique ceramic feedthrough manufacturing method, such as using one-time molding in the early stage or combining multiple methods with precision machining in the later stage, successfully solving the high cost, cumbersome process, and high cost of vacuum feedthrough technology. Due to the difficulty of production and low yield, as our technology continues to improve, we look forward to cooperating with you and living up to your expectations.
Ceramic To Metal
Feedthroughs
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Latest Products At Feedthrough
The feedthrough adopts ceramic-metal brazing process. The ceramic is made of zirconia/alumina composite ceramic or silicon nitride ceramic with more reliable performance, and is brazed with precious metal solder containing gold, nickel, palladium and other ductility. The tightness temperature can exceed 550℃. The air tightness of the ceramic feedthrough reaches 1.5*10-10Pam3/s. The leakage rate of 500℃/10 hours is within the safe range.
Feedthrough/Brazing Ceramic To Metal
Feedthrough/Ceramic to Metal
Feedthrough/Solid sealing technology
Characteristics Of Feedthrough
Insulation and Conductivity
Brazed ceramic components combine ceramics and metals. The ceramic part has good insulation properties, while the metal part provides good conductivity.
Corrosion resistance
Ceramic materials are not easily reactive with other chemicals, which greatly protects the metal materials from corrosion.
Wear resistance
Ceramic materials have excellent strength, with high hardness and wear resistance characteristics.
High-Temperature Stability
Ceramic materials have excellent high-temperature stability, and the same applies to brazed ceramic components, which can operate stably in high-temperature environments.
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Ceramic to metal connection
Performance Parameters of Brazed Ceramics
| Name | Brazing ceramics | |||
| Density | g/cm³ | 3.6 - 3.95 | Depends on the ceramic matrix and brazing material composition | |
| Porosity | % | <0.5 | Low porosity enhances mechanical strength and brazed joint strength | |
| Thermal Conductivity | W/m·K | 20 - 30 | High thermal conductivity ensures effective heat transfer | |
| Thermal Expansion Coefficient | x10⁻⁶/K | 6 - 9 | Matches with brazing metal to reduce thermal stress | |
| Flexural Strength | MPa | 350 - 450 | High flexural strength, suitable for mechanical loads | |
| Hardness | GPa | 14 - 18 | High hardness, wear-resistant | |
| Fracture Toughness (K_IC) | MPa·m^0.5 | 3.5 - 4.5 | Higher fracture toughness, reducing the risk of cracking | |
| Shear Strength | MPa | 150 - 250 | High shear strength ensures reliability of the brazed joint | |
| Thermal Shock Resistance | – | High | Excellent thermal shock resistance, withstands rapid temperature changes | |
| Dielectric Constant | – | 9 - 11 | Suitable for electronic and electrical applications | |
Our technical strength and perfect processing products
We focus on the manufacturing and sales of various engineering ceramic products, including alumina ceramics, boron nitride ceramics, silicon nitride ceramics, etc., and expand innovation and exploration in cross-cutting fields such as metallization and metal connectors, feedthroughs and vacuum feedthroughs.
Constantly meet the needs of customers, constantly develop new technologies, and truly become more than ceramics and more than the current situation. Now metallization and metal connectors, feedthroughs and vacuum feedthroughs have become our flagship products. As a combination of cross-material fields, we continue to create new value for customers and achieve rapid growth, with a compound annual growth rate of up to 40 %.
We have strong technical strength to meet your needs, please call us for consultation!
Application status of brazing ceramics
Energy
In the energy sector, brazed ceramics are manufactured into components that are resistant to high temperatures and corrosion.
Electronic Component Manufacturing
Brazing ceramic is a common requirement in the manufacturing process of electronic devices. It is frequently used in the production of integrated circuits or sensors.
Aerospace
Materials used in aerospace applications need to meet characteristics such as lightweight and high strength. Ceramic-metal brazed components are well-suited to these requirements, serving as reliable connectors in the aerospace field. They are commonly used in various aerospace components and engine parts.
Automotive
The engine and exhaust systems of automobiles require materials that are resistant to high temperatures, corrosion, and wear. Ceramic-metal brazing technology can effectively address these requirements.
Medical
Ceramic materials are used in products such as artificial joints and dental restorative materials. These materials often need to be combined with metal components to provide better support.
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Brazing ceramic production process
Are ceramic-to-metal brazed parts an environmentally friendly material?
Brazed ceramic components are relatively environmentally friendly materials. Ceramic materials are typically non-metallic inorganic compounds that do not cause long-term pollution to the environment. Additionally, brazed ceramic components have a long lifespan, reducing the need for replacement and waste disposal. The production process of brazed ceramics also generates relatively little waste. Therefore, in some respects, brazed ceramic components are relatively environmentally friendly materials.
How do ceramic-to-metal brazes compare to regular ceramics?
Compared to ordinary ceramics, brazed ceramic components have added electrical conductivity due to the metal brazing, making them more versatile in terms of usage. Additionally, they have better strength and toughness than typical ceramics. The combination of ceramic and metal allows for the creation of various complex structures, expanding their application fields significantly.
How do ceramic-to-metal brazes compare to regular metals?
Ceramics have excellent insulation properties, and when combined with metal in certain electrical devices, they can prevent short circuits and electrical leakage accidents. Additionally, brazed ceramic components have better high-temperature resistance and corrosion resistance compared to ordinary metals. Their superior mechanical performance and lighter weight also make their application fields more extensive.
Can ceramic to metal brazing parts be customized?
Of course, you only need to provide us with drawings, and our professional team will be able to customize your exclusive brazing ceramics.