United States Patent 19 Ohmae et al 54 METHOD FOR BONDING CERAMICS AND METALS 75 Inventors
A method for bonding Si3N4 or SiC ceramics with met als which comprises the steps of depositing, on the ceramic material, an insert material consisting of a mix ture of at least one metal selected from the group con sisting of Ni and Cu and at least one member selected from the group consisting of metal oxides, nitrides and carbides by ion plating or spary coating, subjecting the deposited insert material to thermal reaction treatment to permit metallurgical bond between the insert mate rial and the ceramic material, and bonding a metal mem ber to the surface of the insert material by brazing with a brazing material whose melting point is lower than the insert material or by diffusion welding at a temperature lower than a melting point of the insert material.