ZIRCONIA SINTERED BODY AND METHOD FOR PRODUCING SAME
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United States of America
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Feb 20, 2025
app pub date -
Dec 26, 2022
filing date -
Dec 26, 2022
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Abstract
The present invention provides a zirconia sintered body and a method of production thereof that exhibit excellent flexural strength, fracture toughness, and translucency according to the yttria content. The present invention relates to a zirconia sintered body comprising zirconia particles, and satisfying A15/A50<0.60 (wherein A15 represents the particle diameter of when the cumulative area of zirconia particles reaches 15% of the total area, and A50 represents the particle diameter of when the cumulative area of zirconia particles reaches 50% of the total area in a SEM photograph of the zirconia sintered body when the area of each zirconia particle is calculated and the calculated areas are accumulated in sequence from particles with smaller areas, where the total area represents the sum of the areas of the zirconia particles in the SEM photograph).
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