GLASS CERAMICS AND PROCESS FOR PRODUCTION THEREOF, PROCESS FOR PRODUCING SINTERED GLASS CERAMICS, PROCESS FOR PRODUCING COMPLEX, MOLDED ARTICLE HAVING PHOTOCATALYTIC FUNCTION, AND HYDROPHILIC MOLDED ARTICLE

摘要

Disclosed is a process for producing a glass ceramics which has a surface having excellent durability and has at least one titanium oxide crystal phase selected from those of anatase type, rutile type and brookite type. Also disclosed are a molded article having a photocatalytic function and a hydrophilic molded article each of which comprises the glass ceramics produced by the process. The glass ceramics comprises 15.0 to 95.0% by mol inclusive of a TiO2 component and 3.0 to 85.0% by mol inclusive of a P2O5 component and/or an SiO2 component in terms of oxide contents relative to the total amount of the glass ceramics.