METHOD OF MANUFACTURING POROUS COMPACT AND POROUS COMPACT

摘要

PROBLEM TO BE SOLVED: To provide a porous compact of high productivity, needless of long time heat treatment, and having uniform density in thickness direction.;SOLUTION: This porous compact is characterized in that the porous compact is a sintered compact containing Mg, Al, and Si, the crystal phase of which has diffraction peaks 1, 2, at 2θ is 24.6-24.8° and 24.7-24.9°, the coefficient of thermal expansion at 0-25°C is 0-3×10^-6/°C, the specific gravity is ≤2.0, and the porocity is 25-80 vol.%.;COPYRIGHT: (C)2003,JPO