Patent ID: 9669462
Date: 2017-06-06
CPC Classifications: B22F,C22C,H01M,Y02E

Claim:
1. A porous aluminum sintered compact in which a plurality of aluminum base materials are sintered together, wherein the aluminum base materials are composed of aluminum fibers and aluminum powder with a mixing ratio of aluminum powder in a range of 1.0 mass % to 10 mass %, molten aluminum inside the aluminum base material is ejected outwards and solidified in a sintering step so that columnar protrusions protruding outwards are formed on an outer surface of the aluminum base material, shapes of the aluminum base materials are maintained after being melted, the porous aluminum sintered compact includes bonding portions at which the aluminum base materials are bonded together through the columnar protrusions, and a Ti—Al-based compound is present in bonding portions.