BMI offers high-vacuum brazing services for active-metal brazing of ceramics to metals when pre-metallization of the ceramic is not possible. Although the vast majority of ceramic-to-metal joints are brazed using pre-metallized ceramics, in some applications pre-metallization of the ceramic itself may not be possible or the material properties of the ceramic and metal may preclude the use of a pre-metallized ceramic.

BMI offers decades of experience providing high-vacuum brazing services for active-metal brazing. Examples of past applications include:

• complex high voltage feedthrough assemblies
• 8" diameter ceramic rings to kovar and subsequent welding of the kovar to stainless steel
• ceramic windows for RF waveguide applications

BMI maintains multiple brazing and material processing furnaces featuring:

• hot zone dimensions as large as 24" x 24" x 24"
• temperature capabilities to 1250 deg C
• programmer controlled for accurate temperature and pressure control
• computer recorded and recorder chart output is available for certification of furnace operations

We offer a complete vacuum leak-checking facility to verify the integrity of our vacuum brazed and welded components. Please contact us with your specific vacuum brazing needs and we'll be happy to provide a quote.