| 摘要 |
PURPOSE:To obtain a porous sintered body with superior weather resistance and sufficient mechanical strength by mixing Al (alloy) powder with fine powder of Ni (alloy or compound) and sintering the mixture at a temp. close to the eutectic point of Al and Ni. CONSTITUTION:Al (alloy) powder is mixed with a small amount of fine powder of Ni (alloy or compound) and molded into a desired shape without applying pressure. The molded body is sintered at the eutectic point of Al and Ni or a temp. close to the eutectic point, e.g. at 660-640 deg.C in a nonoxidative atmosphere contg. H2. By this method the Ni component is melted and dispersed in the Al powder, an Al-Ni alloy is precipitated in the Al matrix, and a porous sintered body with superior mechanical strength, elongation and corrosion resistance is obtd. |
