Place of Origin: Guangdong, China
Material Introduction: This ceramic-to-metal hermetic sealing assembly is made with high-purity alumina ceramics or aluminum nitride ceramics, combined with Kovar, stainless steel, nickel-based alloys or other matched metal materials according to the sealing structure and working environment.
Key Features: Designed for ceramic-to-metal brazing, hermetic sealing, vacuum compatibility, matched thermal expansion, electrical insulation and stable sealing performance in customized ceramic-metal assemblies.
Application Industries: Suitable for semiconductor vacuum equipment, aerospace electronics, sensor housings, medical device assemblies, electronic packaging, energy systems and high-reliability industrial sealing applications.
Lead Time: Lead time depends on ceramic and metal material selection, drawing complexity, brazing structure, sealing performance requirements, testing standards and order quantity.
Custom Ceramic-to-Metal Hermetic Sealing Assemblies are designed for applications where ceramic insulation and metal strength need to work together in a sealed structure. These parts are commonly used in vacuum equipment, semiconductor systems, sensors, electronic packaging, medical devices and aerospace electronics.
Compared with standard ceramic tubes or simple metal fittings, ceramic-to-metal sealing assemblies require more precise control of the bonding interface. The ceramic material, metal alloy, surface preparation, metallization layer and brazing structure all need to be matched carefully to achieve stable sealing and reliable performance in the final assembly.
CERAMPRO supports custom ceramic-to-metal sealing parts based on customer drawings, samples and application requirements. We can assist with material selection, ceramic machining, metallization, brazing structure review and inspection coordination for prototype and small-batch OEM projects.
The ceramic section is usually made from high-purity alumina ceramics or aluminum nitride ceramics. Alumina is widely used for electrical insulation and structural stability, while aluminum nitride is selected when thermal conductivity and insulation are both important.
The metal section can be matched with Kovar, stainless steel, nickel-based alloys or other suitable metal materials. For ceramic-to-metal sealing, material matching is important because ceramics and metals expand differently during heating and cooling. A suitable combination helps reduce stress at the bonding area and improves the reliability of the sealed assembly.
For projects involving metallized ceramic surfaces, related solutions can also be viewed in our metalized ceramic components.
This product is not a standard catalog part. Each ceramic-to-metal hermetic sealing assembly is usually designed around a specific sealing structure, operating environment and assembly requirement. That is why drawing review and material matching are important before production.
CERAMPRO can support customers who need custom sealing sleeves, flanged feedthroughs, ceramic-metal tubes, insulated housings and brazed ceramic assemblies. Instead of only supplying ceramic parts, we focus on helping customers combine ceramic insulation, metal structure and sealing requirements into one practical component solution.
| Item | Custom Options / Description |
|---|---|
| Ceramic Materials | Alumina ceramic, aluminum nitride ceramic or other advanced ceramic materials according to application needs |
| Metal Materials | Kovar, stainless steel, nickel-based alloys or other matched metal materials |
| Joining Process | Ceramic surface preparation, metallization, brazing and ceramic-to-metal assembly |
| Sealing Type | Hermetic sealing, vacuum sealing, insulated sealing or custom ceramic-metal sealing structures |
| Product Forms | Sealing sleeves, flanged feedthroughs, ceramic-metal tubes, insulated housings and custom assemblies |
| Testing Options | Leak rate, insulation performance, dimensional inspection and other testing items can be discussed according to project requirements |
| Customization | Available according to drawings, samples, assembly requirements and working conditions |
| Material | Main Function | Suitable Applications |
|---|---|---|
| Alumina Ceramic | Electrical insulation, mechanical stability and good processing adaptability | Vacuum seals, insulated sleeves, feedthroughs and ceramic-metal assemblies |
| Aluminum Nitride Ceramic | Thermal conductivity with electrical insulation | Electronic packaging, thermal management structures and heat-sensitive sealing parts |
| Kovar Alloy | Thermal expansion matching with ceramic materials | Hermetic sealing, electronic packaging and ceramic-to-metal brazing structures |
| Stainless Steel | Mechanical strength and corrosion resistance | Flanged structures, vacuum hardware and industrial sealing components |
| Nickel-Based Alloy | High-temperature and special environment performance | High-reliability sealing assemblies and demanding industrial applications |
They are used in applications that require ceramic insulation, metal strength and reliable sealing performance, such as vacuum systems, semiconductor equipment, sensors, electronic packaging, medical devices and aerospace electronics.
Most ceramic-to-metal hermetic sealing assemblies are custom-made. The structure, materials and sealing requirements are usually confirmed according to customer drawings and application conditions.
Common ceramic options include alumina ceramics and aluminum nitride ceramics. The final choice depends on insulation needs, thermal performance, mechanical strength and operating environment.
Kovar, stainless steel, nickel-based alloys and other suitable metals can be considered. The metal material should be selected based on thermal expansion matching, sealing design and working conditions.
Ceramics and metals expand at different rates when temperature changes. Proper material matching helps reduce stress at the joint and improves the long-term stability of the sealed assembly.
Yes. CERAMPRO can support projects involving ceramic surface preparation, metallization, brazing structure review and customized ceramic-to-metal assembly production.
Yes. Ceramic-to-metal hermetic sealing assemblies are often used in vacuum feedthroughs, insulated vacuum structures and sealed components. Specific performance should be evaluated according to project requirements.
Drawings, dimensions, tolerance requirements, ceramic and metal materials, sealing method, testing requirements, working temperature, application environment and order quantity are helpful for quotation.
Yes. CERAMPRO can support prototype development and small-batch production for customized ceramic-to-metal sealing components.
Alumina is commonly used for insulation and general ceramic-to-metal sealing structures. Aluminum nitride is more suitable when both thermal conductivity and electrical insulation are required.
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