SINTERING ASSISTANT FOR ALUMINUM CONTAINING COPPER BASED ALLOY POWDER AND ALLOY POWDER FOR SINTERING CONTAINING SAME SINTERING ASSISTANT

摘要

PROBLEM TO BE SOLVED: To provide a sintering assistant which can further promote the sintering of aluminum-containing copper based alloy powder without corroding a sintered compact and a sintering furnace, and to provide alloy powder for sintering. SOLUTION: The sintering assistant for aluminum-containing copper based alloy powder is prepared by mixing aluminum fluoride with 1 to 70 wt.% of at least one kind selected from calcium fluoride and magnesium fluoride. In particular, the aluminum-containing copper based alloy powder containing the above sintering assistant in the range of 0.02 to 0.5 wt.% becomes a sintered compact provided with excellent mechanical strength and corrosion resistance.