HIGH DENSITY POWDER COMPACT, ITS SINTERED COMPACT AND ITS MANUFACTURING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a slurry suitable for cast molding, its manufacturing method, a high density powder compact manufactured by using the slurry and a high density sintered compact with low shrinkage.;SOLUTION: In the method for manufacturing the slurry by mixing raw material powders and a solvent, a raw material slurry having low viscosity and low thixotropy is prepared by adopting wet jet mill processing without the use of a grinding medium. The homogeneous and high density powder compact is molded by the cast molding of the slurry. A method for manufacturing a high density sintered compact with low shrinkage at sintering by sintering the molded product and the sintered product are provided. The high density sintered compact with low shrinkage has a relative density of 98% or more and a shrinkage factor at sintering of 13% or less.;COPYRIGHT: (C)2006,JPO&NCIPI