Electrical Engineering Ceramics

Brazing

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