Metallized Ceramic Components
Metallized Relay Ceramic Housing
Custom 95% and 99% alumina ceramic relay housings with Mo-Mn metallization and optional Ni, Cu, or Au plating. Designed for high-voltage and vacuum relay applications, these components offer reliable electrical insulation, excellent brazability, mechanical strength, and support for hermetic sealing.
Component Types
Detailed Product Information
Metallized Alumina Ceramic Relay Housing
Product Overview
TecCera supplies customized metallized alumina ceramic housings and components for electrical insulation, hermetic sealing, high-vacuum assemblies, and high-temperature applications.
Available in 95% and 99% alumina, these components combine high dielectric strength, mechanical stability, and reliable metal-to-ceramic bonding. Depending on the component geometry and technical requirements, metallization can be applied by screen printing, spraying, brushing, or precision dispensing.
Molybdenum-manganese (Mo-Mn) is commonly used as the base metallization layer. Optional nickel, copper, silver, or gold plating can be applied to improve wettability, corrosion resistance, brazability, and electrical performance.
Flat, cylindrical, and complex ceramic components can be manufactured according to customer drawings or samples.
Technical Specifications
|
No. |
Parameter |
Typical Value |
Unit |
|
1 |
Alumina purity |
95 or 99 |
% |
|
2 |
Bulk density |
≥3.63 |
g/cm³ |
|
3 |
Thermal conductivity at 25°C |
22.45 |
W/m·K |
|
4 |
Coefficient of thermal expansion, 20–1000°C |
8.26 |
×10⁻⁶/K |
|
5 |
Flexural strength |
≥340 |
MPa |
|
6 |
Dielectric strength |
≥8.3 |
kV/mm |
|
7 |
Dielectric constant at 1 MHz |
9.1 |
— |
|
8 |
Dielectric loss at 1 MHz |
≤0.0004 |
— |
|
9 |
Mo-Mn metallization thickness |
15–25 |
μm |
|
10 |
Ni, Cu, Ag or Au plating thickness |
2–10, customizable |
μm |
The values above are typical reference values. Actual properties may vary depending on alumina grade, component geometry, metallization process, and testing method.
Material and Surface Options
|
Item |
Available Options |
|
Ceramic material |
95% or 99% alumina |
|
Base metallization |
Mo-Mn |
|
Optional plating |
Nickel, copper, silver or gold |
|
Surface treatment |
Glazing and polishing |
|
Dimensions |
Customized according to drawings or samples |
|
Component shapes |
Flat, cylindrical and complex geometries |
Available Metallization Configurations
- Alumina ceramic + Mo-Mn metallization + nickel plating
- Alumina ceramic + Mo-Mn metallization + silver plating
- Alumina ceramic + Mo-Mn metallization + gold plating
- Alumina ceramic + directly printed silver layer
- Other metallization and plating combinations upon request
Typical Applications
Metallized alumina ceramic components are commonly used in:
- Ceramic feedthrough insulators
- Relay and vacuum-switch housings
- Ceramic headers
- High-power electrical receptacles
- Insulating discs, rings and cylinders
- Electrostatic precipitator components
- Power-switching components
- Traveling-wave tubes
- Vacuum interrupters
- RF and microwave windows
- Power-grid tubes
- X-ray tube components
- Hermetic electrical and electronic packages
Custom Manufacturing
Custom metallized ceramic components are available according to customer drawings, samples, operating conditions, and joining requirements.
For an accurate quotation, please provide:
- 2D drawings or 3D models
- Alumina purity
- Dimensions and tolerances
- Metallized areas
- Metallization and plating materials
- Required coating thickness
- Brazing or joining method
- Operating temperature and environment
- Estimated order quantity
Contact TecCera to discuss your metallized alumina ceramic component requirements.
