Being the porous preforming body which contains the production mannered null alumina of the preforming body

摘要

PROBLEM TO BE SOLVED: To effectively impregnate the pore part of a porous green compact with molten metal under low impregnating pressure while using the green compact having a relatively high volume ratio in the case a partially strengthened aluminum composite member is produced using the porous preliminarily molded body.;SOLUTION: The green compact for composite contains alumina and is composited by being impregnated with the molten metal of an aluminum alloy. In the green compact, copper-aluminum oxide shown by CuAl₂O₄ is formed on the contact part with the molten metal in the pore part to be impregnated with the molten metal. The wettability of the pore part in the green compact to the molten metal is improved by the oxide.;COPYRIGHT: (C)2005,JPO&NCIPI