METHOD FOR MANUFACTURING HIGH-STRENGTH POROUS BODY

摘要

PROBLEM TO BE SOLVED: To provide a manufacturing method by which a metallic porous body having high porosity and high strength can be manufactured. SOLUTION: The method comprises steps of mixing metal powder and inorganic or organic spacer-material powder as a void-forming agent which burns out on heating pressing the resultant powder mixture, applying heating up to the burning-out temperature of the spacer-material powder to burn out the spacer material and carrying out sintering treatment at a temperature higher than the above temperature to sinter the metal powder. In this method for manufacturing the high-strength metallic porous body, irregular-shaped powder having columnar or fibrous slender shape is used as the spacer-material powder.