PURPOSE: To strongly bond ceramics without lowering heat resistance by opposing ceramics having ground bonding faces at intervals, packing ceramic raw material between the resultant bonding faces and sintering the raw material.
CONSTITUTION: Bonding faces 2A and 2B of same kind or different kind of ceramic products 1A and 1B obtained by completing sintering of ceramics and glowing crystal particles are ground with a grinder to produce fine cracks such as 3A or 3B in one or two particles in the surface layer. Then the bonding faces 2A and 2B are opposed at intervals of 10-20μm and ceramic raw material particles 4 similar in kind to the above-mentioned ceramic product 1A and 1B or different in kind therefrom are put between these bonding faces 2A and 2B and then sintered in a heating furnace at 1700-1900°C for 2-4hr to bond these ceramics.
TSUKUDA HIROSHI
TAKITA KATSUHIKO
