Abstract
Mica composition glass was added to magnesia, alumina and silica powder mixture. And its reaction and sintering behaviors were investigated and the properties of obtained cordierite/mica composites were evaluated. The reaction and densification of the glass added specimens were rapidly progressed at 1050-1100°C though those of the no added specimen occurred at much higher temperatures. Such promotions of the reaction and sintering were caused by the formation of liquid phase. The mica composition glass was melted at about 1050°C. The diffusion rate of the materials became much faster through the liquid above 1050°C. The obtained cordierite/mica composites to which 40mass% glass was added could be drilled by machining tool for concrete. However, large chippings were observed.
