Manufactured from 95% alumina ceramic, these Insulator rings are processed with Mo/Mn metallization and nickel plating on specified areas to create a strong bonding interface for brazing with metal components. The Mo/Mn metallized and nickel-plated surface provides a reliable interface for brazing the alumina ceramic insulator to metal components in hermetic assemblies.
These ceramic Insulators are suitable for vacuum circuit breakers,electrical switches,vacuum interrupters,and high voltage switching equipment,where stable insulation performance and long-term reliability are required.
Features
High Insulation Performance Alumina Ceramic Insulator
Mo/Mn Metallization for Ceramic to Metal Bonding
Nickel Plated Surface for Improved Brazing Compatibility
Precision Metallized Ceramic Components
Reliable Component for Electrical Switching Systems
Technical Specifications
| Item | Specification |
|---|---|
| Material | Alumina Ceramic |
| Application | Circuit Breaker Components |
| Ceramic Color | White |
| Metallization Method | Mo/Mn Metallization |
| Metallization Thickness | 30 μm |
| Plating Material | Nickel (Ni) |
| Nickel Plating Thickness | 3–5 μm |
| Surface Treatment | Metallized + Nickel Plated Area |
| Processing | Ceramic forming, sintering, metallization, plating |
| Customization | Available according to drawings |
Applications
Vacuum Circuit Breakers
Metallized alumina ceramic insulators are used as insulating and supporting components in vacuum circuit breakers and electrical switching assemblies, providing reliable electrical isolation, mechanical strength, and compatibility with metal connection structures.
Vacuum Interrupters
The ceramic component supports hermetic sealing and insulation requirements in vacuum interrupter assemblies.
High Voltage Switching Equipment
Suitable for electrical equipment requiring high dielectric strength, insulation reliability, and long operating lifetime.
Need a Custom Metallized Ceramic Insulator?
Send us your drawings, dimensions, or application requirements. INNOVACERA provides customized metallized alumina ceramic solutions for circuit breakers and high-voltage electrical components.
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Frequently Asked Questions
Why Use Mo/Mn Metallized 95% Alumina Insulators? How Do They Ensure Reliable Hermetic Brazing?
95% alumina ceramic delivers outstanding dielectric insulation and mechanical strength required for medium and high-voltage switchgear. By applying a 30 μm Mo/Mn (molybdenum-manganese) metallization layer followed by a 3–5 μm nickel plating, the ceramic surface provides an exceptionally wettable, crack-resistant bonding interface. This ensures void-free, hermetic ceramic-to-metal brazing, effectively preventing vacuum leakage and dielectric breakdown under continuous electrical and mechanical stress.
Need Specific Ring Dimensions for High-Voltage Switchgear? How to Custom Metallized Ceramics from INNOVACERA?
INNOVACERA provides full design and manufacturing flexibility to custom metallized ceramic insulators according to your engineering drawings. Customers can specify outer diameters, wall thicknesses, height profiles, and selective metallization patterns to match various vacuum circuit breakers, contactors, and vacuum interrupters. Simply share your CAD files, tolerances, and brazing alloy requirements to receive engineering verification and production support.
