Periclase, forsterite and spinel construction material

摘要

A heat resistant periclase, forsterite and spinel construction material has the compsn. (by wt. 2-11% Al2O3, 2-13% SiO2 and balance MgO, determined by the mixing ratio of two basic materials, i.e. (a) 5-40 wt.% sintered material contg. (by wt.) 19-27% Al2O3, 22-32% SiO2 and 44-55% MgO and (b) 60-95 wt.% high purity sintered magnesia contg. at least 97% MgO.