Patent ID: 7718252

Claim:
An inorganic fiber article comprising: an inorganic fiber molded body; and an inorganic coating layer having foam pores, the foam pores occupying at least about 40% by volume and at most about 90% by volume in the inorganic coating layer, wherein the inorganic coating layer including an amorphous material and at least one crystalline material is formed on a surface of the inorganic fiber molded body such that the inorganic fiber molded body includes inorganic fibers fused into the inorganic coating layer at the surface of the inorganic fiber molded body, the at least one crystalline material has an amount of between 10 parts by weight and 30 parts by weight with respect to 100 parts by weight of the amorphous material, and the entire surface of the inorganic fiber molded body is completely covered with the inorganic coating layer such that the inorganic coating layer forms an outer shape of the inorganic fiber molded body.