Custom High Purity Aluminum Oxide Ceramic Metallization Ring

Custom High Purity Aluminum Oxide Ceramic Metallization Ring

The description of the metalized ceramics
In the ceramic to metal joining technology, a certain metallic layer on the ceramic surface is needed, like Molybdenum or Tungsten, then it could achieve in connection of metal and ceramic by means of high-temperature brazing. Metalized alumina Ceramic Parts are commonly used in many applications, like electronics, High-Vacuum Technology, Medical Technology, Sensor Technology.
The metalized alumina ceramic parts we manufactured are famous for the excellent bonding strength, super mechanical, excellent electrical insulation, exceptional thermal features.

Conventional surface metallization methods include the noble metal method and the Mo-Mn method. Among them, the noble metal method is to mix a precious metal powder (such as silver powder, palladium powder) with glass powder, a binder, a solvent, etc. to form a slurry and apply it on the surface of the ceramic, and then the glass is melted and sintered to form a precious metal layer on the surface of the ceramic; the Mo-Mn method is to coat metal powders such as molybdenum powder and manganese powder on the surface of the ceramic, and then sinter at a high temperature in a reducing atmosphere (hydrogen), thereby forming a metal layer on the ceramic surface.

The key parameters capability

The prime features of alumina metalized ceramics
1. High bonding/brazing strength with ideal vacuum tightness between the assembly
2. With diamond-like hardness to be 85 HRV and superb compressive strength
3. Great insulation strength and volume resistivity that fit for various high voltage high current applications
4. Chemical stability, anti-aging even if it works in a variety of harsh environments, free of rust forever.
5. Over 276 times wear resistance in comparison with stainless steel, it leads to a long service lifespan.