| 摘要 |
PURPOSE:To improve the bonding strength of a molded body to a metal body by superposing the molded body obtd. by compression-molding a specified mixture on the metal body, and expanding the molded body by heating in the absence of oxygen. CONSTITUTION:Transition metal powder of about 25-150mum particle size is mixed with Al powder and compression-molded with a press mold. The molded body is superposed on a metal body, put in a heating mold and sintered by heating in vacuum or the like. The transition metal particles come in contact with each other, bond together by melting, cause cross-linking and form macropores. Pressure of expansion is applied to the surface of the metal body and the molded body bonds to the surface under the pressure. Diffusion phenomenon is caused on the boundary and perfect firm cladding on the level of atoms can be carried out. Thus, a catalytic reaction element which can be effectively utilized for various reactions is obtd.
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