Metallized Ceramic Components
Metallized Ceramic Circular Plate
Precision metallized alumina ceramic circular plates with Mo/Mn metallization and optional Ni, Ag, Au, or Cu plating. Suitable for ceramic-to-metal brazing, vacuum, electrical insulation, and hermetic sealing applications. Custom dimensions and metallization patterns are available.
Component Types
Detailed Product Information
The Metallized Ceramic Circular Plate presents a sophisticated fusion of advanced materials engineering and innovative design. This product exemplifies durability and resilience, making it suitable for a variety of applications in both industrial and consumer markets. Its unique metallization enhances aesthetic appeal while providing superior functionality. The plate remains a pivotal component in modern technology, reflecting the cutting-edge advancements in ceramic materials. TecCera supplies precision metallized alumina ceramic circular plates designed for electrical insulation, hermetic sealing, brazing, and high-reliability electronic assemblies.
These ceramic plates are typically manufactured from 95% or 99% alumina ceramic and can be metallized using Mo/Mn (molybdenum-manganese) systems, followed by nickel, silver, gold, or other plating according to application requirements.
Metallization can be applied to flat surfaces, selected areas, edges, and other specified regions according to customer drawings.
Technical Specifications
|
No. |
Parameter |
Typical Value / Specification |
Unit |
|
1 |
Alumina Purity |
95% or 99% |
% |
|
2 |
Bulk Density |
≥ 3.63 |
g/cm³ |
|
3 |
Thermal Conductivity (25°C) |
22.45 |
W/m·K |
|
4 |
Coefficient of Thermal Expansion (20–1000°C) |
8.26 × 10⁻⁶ |
/°C |
|
5 |
Flexural Strength |
≥ 340 |
MPa |
|
6 |
Dielectric Strength |
≥ 8.3 |
kV/mm |
|
7 |
Dielectric Constant (1 MHz) |
9.1 |
— |
|
8 |
Dielectric Loss (1 MHz) |
≤ 0.0004 |
— |
|
9 |
Mo/Mn Metallization Layer |
15–25 |
μm |
|
10 |
Ni / Cu / Au Plating Layer |
8–10 |
μm |
Values shown are typical reference values and may vary depending on alumina grade, geometry, manufacturing process, and customer requirements.
Material Properties
Metallized alumina ceramics combine excellent electrical insulation with high mechanical strength, thermal stability, and reliable metal-to-ceramic bonding performance.
Typical characteristics include:
- High electrical insulation resistance
- Good dielectric strength
- High mechanical strength and hardness
- Excellent thermal stability
- Low water absorption
- Good dimensional stability
- Good resistance to wear and corrosion
- Suitable for vacuum and hermetic applications
- Compatible with brazing and metal joining processes
Metallization Options
TecCera can provide different metallization and plating combinations depending on the intended joining process and operating environment.
Common configurations include:
- Alumina Ceramic + Mo/Mn Metallization + Nickel Plating
- Alumina Ceramic + Mo/Mn Metallization + Silver Plating
- Alumina Ceramic + Mo/Mn Metallization + Gold Plating
- Alumina Ceramic + Printed Silver Metallization
Custom metallization patterns, selective metallization areas, and plating systems can be produced according to customer drawings and technical specifications.
Applications
Metallized ceramic circular plates and related alumina ceramic components are widely used in electrical, electronic, vacuum, power, medical, and industrial equipment.
Typical applications include:
- Ceramic feedthrough insulators
- Electrical insulating discs
- Ceramic headers
- High-power electrical connectors
- Vacuum interrupters
- Power switches
- Traveling-wave tubes
- X-ray tubes
- Power grid tubes
- Hermetic electrical feedthroughs
- Vacuum electronic components
- Ceramic-to-metal brazed assemblies
- High-voltage insulation components
- Electronic packaging and sealing components
Custom Metallized Ceramic Components
In addition to circular plates, TecCera can supply metallized ceramic components in different shapes and configurations, including:
- Ceramic discs
- Ceramic rings
- Ceramic tubes
- Ceramic cylinders
- Ceramic substrates
- Ceramic insulators
- Custom precision ceramic parts
Dimensions, tolerances, metallization areas, surface finish, plating type, and ceramic purity can be customized according to customer drawings or samples.
Request a Quote
Please send us your drawing, dimensions, alumina purity, metallization area, plating requirements, quantity, and application conditions.
TecCera can evaluate the technical requirements and provide a suitable metallized ceramic solution for your application.
