3m Innovative Properties Company

Esk Ceramics Gmbh&co. Kg

Ursula Kayser

Krishna B Uibel

Christoph Lesniak

Frank Meschke

Armin Kayser

Andreas I Rendtel

Jan C Zimmer

Johanna Zimmermann

Jan Christoph Zimmer

Andreas Rendtel

Dietmar Schonhoven

Provided are materials for a formed body comprising hexagonal boron nitride and such formed bodies. Also provided are heat-treated formed body obtained by heat-treating the formed bodies. The invention further relates to processes for making the formed body and the heat-treated formed body.

Formed hexagonal boron nitride body, heat-treated hexagonal boron nitride body and processes for producing the same

A process for joining ceramic components, wherein the components which are to be joined consist of sintered nonoxide ceramic, and the components are brought into contact with one another in a diffusion-welding process in the presence of a shielding gas atmosphere and are joined with little deformation, under the application of a temperature of at least 1600&#xb0; C., preferably over 1800&#xb0; C., particularly preferably over 2000&#xb0; C., and if appropriate a load, to form a monolith, the components which are to be joined experiencing plastic deformation in the direction in which force is introduced of less than 5%, preferably less than 1%.

Process for the low-deformation diffusion welding of ceramic components

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Buchenberg, Germany

Ursula Kayser