METHOD FOR PRODUCING W-Cu COMPOSITE MATERIAL THIN SHEET

摘要

PROBLEM TO BE SOLVED: To produce a W-Cu composite material with a thin sheet shape which has a high thermal conductivity/a low thermal expansion coefficient, and is suitable for the heat management element of electronic equipment by eliminating complicated stages and minimizing pores inside the material. SOLUTION: In the production method for a W-Cu composite material thin sheet, a first stage where copper powder and tungsten powder are mixed to produce powder for thermal spraying in the production method for a metal-matrix composite material, and a secondary stage where the powder for thermal spraying is plasma-sprayed on a substrate to form a thin sheet are included. COPYRIGHT: (C)2004,JPO