VISIBLE LIGHT SHIELDING WHITE CERAMIC, PRODUCTION METHOD THEREOF AND WHITE CERAMIC VISIBLE LIGHT SHIELDING BODY

摘要

PROBLEM TO BE SOLVED: To provide an integrated white ceramic which has visible light shielding properties suitable for semiconductors and electronic parts and delicate and excellent mechanical characteristics.;SOLUTION: A visible light shielding ceramic uses three raw material powders consisting of 20-70 mass% of alumina, 15-70 mass% of zirconia stabilized or partially stabilized with yttria and 5 mass% or more of titanium oxide as a basic composition and is a ceramic formed by mixing the raw material powders uniformly, molding and sintering to form oxygen-defective titanium oxide in the structure. A method of producing a visible light shielding white ceramic comprises mixing the raw material powders uniformly, molding, blackening by reductive sintering and decoloring by annealing in an oxidative atmosphere.;COPYRIGHT: (C)2015,JPO&INPIT