High temp. porous ceramic bodies mfr. - by heating mullite, corundum, spinel or graphite with starch, cellulose or other hydrocarbon as binder

摘要

Method of producing porous high temperature ceramic bodies consists of mixing together mullite, corundum, spinel or graphite of grain size 0.01-0.1 mm with starch, cellulose or other hydrocarbon which upon heating at 1600 deg.C in air forms a highly elastic adhesive. ADVANTAGE - The bodies have high crack resistance under high stress conditions without the need for fibre additives. Upon heating and cooling the bodies do not change volume or shape