Patent ID: 8598058
Filing Date: 2013-12-03
Classification: A61K,B82Y,C01G,C01P,C04B

Abstract:
1. A sintered body comprising a zirconia-based ceramic material comprising: zirconium oxide in an amount in a range of 92.5 to 98.0 mole percent based on total moles of inorganic oxide in the zirconia-based ceramic material; yttrium oxide in an amount in a range of 1.5 to 2.5 mole percent based on total moles of inorganic oxide in the zirconia-based ceramic material; and lanthanum oxide in an amount in a range of 0.5 to 5.0 mole percent based on total moles of inorganic oxide in the zirconia-based ceramic material, wherein the zirconia-based ceramic material has an average grain size less than or equal to 200 nanometers and wherein the sintered body has a density that is at least 99.5 percent of a theoretical density.