FOAMING AGENT, FOAMED METAL MATERIAL, AND METHODS FOR PRODUCING THEM

摘要

PROBLEM TO BE SOLVED: To provide a foaming agent for aluminum and an aluminum alloy material. SOLUTION: The foaming agent for aluminum and an aluminum alloy material is anhydrous magnesium carbonate having a BET specific surface area of 0.1-10 m2/g and an average particle diameter of 1-50μm. Aluminum metal or an aluminum alloy material having good balance between reduction in weight and compression strength is obtained by applying the foaming agent to aluminum or the aluminum alloy material. COPYRIGHT: (C)2009,JPO&INPIT