| 摘要 |
A zirconia sintered body comprising zirconia (ZrO2), yttria (Y2O3) and titania (TiO2) [Y2O3/ZrO2=at least 2/98 by mole and TiO2/(ZrO2+Y2O3)=3/97 to 20/80 by mole] has a high translucence giving improved light transmittance. A zirconia sintered body comprising, in addition to ZrO2, Y2O3 and TiO2, 0.1 to 3 mole % of an oxide of a rare earth element of the lanthanum group has a fluorescence-radiating property as well as a high translucence. |
