OXIDATION-TREATED TITANIUM OR TITANIUM-BASED ALLOY MATERIAL HAVING PHOTOCATALYTIC ACTIVITY AND ITS PRODUCTION

摘要

PURPOSE: To impart superior photocatalytic activity and to also impart deodorizing, antimold and antifouling properties, sterilizing action, etc., by forming an oxide layer contg. anatase type titanium oxide on the surface of a Ti or Ti-based alloy substrate. CONSTITUTION: An oxide layer of >=0.1μm thickness contg. >=1vol.% anatase type titanium oxide is formed on the surface of a Ti or Ti-based alloy substrate to produce the objective oxidation-treated Ti or Ti-based alloy material having photocatalytic activity.