Method for preventing low-temperature degradation of tetragonal zirconia
containing materials
    1.
    发明授权
    Method for preventing low-temperature degradation of tetragonal zirconia containing materials 失效
    防止含四方氧化锆的材料的低温降解的方法

    公开(公告)号:US4853353A

    公开(公告)日:1989-08-01

    申请号:US148726

    申请日:1988-01-25

    IPC分类号: C04B35/486

    CPC分类号: C04B35/486

    摘要: A ceramic body has a surface region that contains tetragonal zirconia. The body is partially stabilized with yttria and, optionally, ceria. Substantially the entire surface region is composed of recrystallized tetragonal strain free grains of yttrium oxide zirconium oxide. The content of yttrium in the surface region is substantially the same as the average content of yttrium in the ceramic body, and the surface region is covered with a thin layer of stable tetragonal grains.

    摘要翻译: 陶瓷体具有包含四方晶氧化锆的表面区域。 身体部分地用氧化钇和任选地二氧化铈稳定。 基本上整个表面区域由氧化钇氧化锆的重晶化四方无应变晶粒组成。 表面区域中的钇的含量与陶瓷体的钇的平均含量基本相同,表面区域覆盖有稳定的四方晶格的薄层。