CERAMIC-METAL JOINED BODY, MANUFACTURE AND JOINING APPARATUS

摘要

A ceramic-metal composite body comprises a metallic member (2) and a ceramic member (1) which are integrally joined by fitting a projection (3) on the ceramic member into a recess (4) of the metallic member. To avoid higher pressure in the space left in the recess (4) the projection (3) is fitted and joined to the recess (4) in a vessel kept at a pressure lower than atmospheric pressure. Apparatus for fitting and joining the projection of the ceramic member to the recess of the metallic member comprises a pressure-reducible vessel (11) which is provided with a space for receiving at least the projection of the ceramic member and the recess of the metallic member, a sealing structure comprising O-rings (16a) or the like, an opening (19) for exhausting air inside the vessel, and a slidable push rod (13) for pressing the projection into the recess.