PROCESS FOR MANUFACTURING MAGNESIUM-BASED, DISPERSION STRENGTHENED COMPOSITE MATERIAL, REINFORCEMENT PARTICLE USED FOR THIS AND ITS MANUFACTURING PROCESS

摘要

PROBLEM TO BE SOLVED: To easily and securely realize uniform dispersion of SiC particles in a Mg-based, dispersion strengthened composite material, without any special facility, complicated step, difficult setting of conditions or risk of generating cracks in a preform.;SOLUTION: SiC particles are heated in an oxidized atmosphere to form SiO₂ layers on their surfaces and added to molten Mg or Mg alloy, which is subsequently subjected to casting to manufacture the Mg-based composite material wherein SiC reinforcement particles are uniformly dispersed in a matrix of Mg or Mg alloy.;COPYRIGHT: (C)2003,JPO