REFRACTORY FIBER SPACIAL STRUCTURE AND MANUFACTURING METHOD THEREOF

摘要

A refractory fiber spacial structure having a porous structure and constituted by refractory fiber-like materials comprising a core portion constituted by a refractory crystalline compound B and a skin portion constituted substantially by a refractory crystalline compound A, and both compounds A and B are in a sintered state in the refractory fiber spacial structure and a portion of the refractory crystalline compound A is impregnated in the sintered state into the core portion, so that a rigid form having a strong compression strength is provided for the refractory fiber spacial structure.