Electrical Engineering Ceramics

Ceramic-to-metal Assemblies


High temperature brazing is one of the most widely used methods for ensuring that the joint is resistant to corrosion, high temperatures and mechanical stress. In ceramic-to-metal brazing, a technical ceramic part is joined to a metal component by means of a braze (alloy or pure metal) in the form of a strip or wire at a temperature of approximately 800 °C. In order to achieve an effective brazing, it is necessary to choose the materials mainly according to their expansion coefficient. We use 99.7% pure Kyocera alumina and usually AgCu28 (eutectic) solder.

Ceramic-metal assemblies:

We offer a wide range of technical ceramics, including standard and custom ceramic-to-metal brazed joints. Composed of pure alumina and metals (Titanium, Stainless Steel, Copper, FeNiCo), our ceramic-to-metal brazed joints ensure optimal electrical insulation and are perfectly sealed under ultra-high vacuum and even under pressure up to several thousand bars. These ceramic-to-metal brazed joints can withstand temperatures from -271 °C to 450 °C or more, depending on the brazing material used. Naturally, we support our customers in the design of brazed components.

Typical areas of application for ceramic-to-metal joints


  • High voltage
  • High current
  • Sensors and measuring devices
  • Vacuum and ultra-high vacuum technologies
  • Cryogenic applications
  • Medical technologies
  • Radiotherapy
  • High frequency technologies
  • Power engineering
  • Particle accelerators

Please feel free to browse our standard product range or contact us for customised orders for specific applications

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