Glass-ceramic composite material

Abstract

Abstract PURPOSE:The titled composite material, prepared by dispersing ceramic particles having the treated surfaces in a (crystallized) glass having a specific thermal expansion coefficient, and having a high thermal conductivity and good dimensional accuracy after the calcination. CONSTITUTION:A glass-ceramic composite material prepared by incorporating ceramic particles, e.g. a particulate material of Al2O3, BN or Si3N4, uniformly with a diluted SiO2 film coating agent, baking the resultant mixture at about 500 deg.C for about 30min to form ceramic particles having the surfaces coated with the SiO2 films, mixing (A) (crystallized) glass powder, preferably cordierite or beta-spodumene, having 5X10<-7>-45X10<-7> thermal expansion coefficient with (B) about 5-60vol%, based on the glass (A), above-mentioned ceramic powder, molding the resultant mixture into a desired shape by the green sheet method, etc., and calcining the resultant molded material at about 900-1,000 deg.C for about 1-3hr.

Inventors

• 👤 Masahiko Okuyama
• 👤 奥山　雅彦
• 👤 Kazuo Kondo
• 👤 和夫 近藤

Bibliographic Details