| abstract |
The present invention provides a pink zirconia sintered body having high color density and high strength of sintered body, excellent color appearance very close to teeth and excellent translucency, especially a colored translucency which can be used for a mill blank and an orthodontic bracket. 2 to the 4㏖% yttria, from 0.02 to 0.8㏖% of Er 2 O 3, and containing Fe 2 O 3 in terms of 20ppm or more Al 2 O 3 of less than 0.2wt% or more iron compounds, and 0.005wt% of less than 2000ppm by And the remainder is zirconia. The color parameters specified in JIS-Z8729 have a lightness L * of 55 to 75, a * of 0 to 10, b * of 0 to 30, a relative density of 99.80% A colored translucent zirconia sintered body having a total light transmittance of 18% or more and 40% or less by a D65 light source at 1 mm is provided. |