BLACKENED ZIRCONIA CERAMIC FOR IMPLANTATION IN LIVING BODY, AND METHOD FOR PRODUCING THE SAME

摘要

PROBLEM TO BE SOLVED: To enable aesthetic properties of a zirconia ceramic to be kept even after sterilization by γ-rays. ;SOLUTION: This blackened zirconia ceramic for implantation in a living body has at least 10 ppm deoxidation rate, and the color thereof is not substantially changed in before and after the sterilization by the irradiation with the γ-rays having about 2.5 Mrad dose of radiation by a cobalt-60 radiation source at about 1 Mrad/hr radiation rate.;COPYRIGHT: (C)2001,JPO