PROCESS FOR THE PRODUCTION OF CERAMIC MATERIALS

摘要

A process for the production of alpha ' or beta 'SiAlON from a starting mixture of silicon metal and clay, wherein the process comprises heating the mixture components in a flowing nitrogen, or nitrogen containing, atmosphere to a temperature sufficient to react the silicon and the nitrogen with the clay to form the beta ' or alpha 'SiAlON and wherein the clay participates in the reaction as a source of aluminium and silicon. 00000