Patent ID: 8309015
Filing Date: 2012-11-13
Classification: A61C,A61K,B82Y,C01G,C01P,C04B

Abstract:
1. A method of making a translucent zirconia sintered body comprising: providing a zirconia sol comprising zirconia particles having an average primary particle size no greater than 50 nm; drying the zirconia sol to provide the zirconia green body; wherein the zirconia green body comprises primary particles and has a density of at least 50 percent of full density, the primary particles having: wherein the diameter of any pores which are present in the green body is not more than about 30 nm; and sintering the zirconia green body at a temperature no greater than 1200° C. to provide a translucent zirconia sintered body comprised of primary particles and having a density of at least 99 percent of full density, the primary particles having: wherein the diameter of any pores which are present in the translucent zirconia sintered body is not more than about 25 nm.