Optimized high temperature thermal barrier
    5.
    发明授权
    Optimized high temperature thermal barrier 有权
    优化的高温热障

    公开(公告)号:US07955708B2

    公开(公告)日:2011-06-07

    申请号:US11520044

    申请日:2006-09-13

    IPC分类号: B32B18/00 C04B41/87

    摘要: The invention is directed to high purity zirconia-based and/or hafnia-based materials and coatings for high temperature cycling applications. Thermal barrier coatings made from the invention high purity material was found to have significantly improved sintering resistance relative to coatings made from current materials of lower purity. The invention materials are high purity zirconia and/or hafnia partially or fully stabilized by one or any combinations of the following stabilizers: yttria, ytterbia, scandia, lanthanide oxide and actinide oxide. Limits for impurity oxide, oxides other than the intended ingredients, that lead to significantly improved sintering resistance were discovered. High purity coating structures suitable for high temperature cycling applications and for application onto a substrate were provided. In one structure, the coating comprises a ceramic matrix, porosity and micro cracks. In another structure, the coating comprises a ceramic matrix, porosity, macro cracks and micro cracks. In another structure, the coating comprises ceramic columns and gaps between the columns. In another structure, the coating comprises ceramic columns, gaps between the columns and nodules distributing randomly in the gaps and columns.

    摘要翻译: 本发明涉及用于高温循环应用的高纯度氧化锆基和/或基于铪的材料和涂层。 发现由本发明的高纯度材料制成的热障涂层相对于由现有低纯度材料制成的涂层具有显着改善的耐烧结性。 本发明的材料是由以下稳定剂的一种或任何组合部分或完全稳定的高纯度氧化锆和/或铪:氧化钇,镱,钪,氧化镧和锕系氧化物。 发现了杂质氧化物,除目标成分以外的氧化物,导致显着提高耐烧结性的限制。 提供了适用于高温循环应用和应用于基底的高纯度涂层结构。 在一种结构中,涂层包括陶瓷基体,孔隙和微裂纹。 在另一种结构中,涂层包括陶瓷基体,多孔性,宏观裂纹和微裂纹。 在另一种结构中,涂层包括陶瓷柱和柱之间的间隙。 在另一种结构中,涂层包括陶瓷柱,柱之间的间隙和结节随机分布在间隙和柱中。

    OPTIMIZED HIGH TEMPERATURE THERMAL BARRIER
    6.
    发明申请
    OPTIMIZED HIGH TEMPERATURE THERMAL BARRIER 有权
    优化高温热障

    公开(公告)号:US20110003119A1

    公开(公告)日:2011-01-06

    申请号:US11520044

    申请日:2006-09-13

    IPC分类号: B32B3/00 B32B15/04

    摘要: The invention is directed to high purity zirconia-based and/or hafnia-based materials and coatings for high temperature cycling applications. Thermal barrier coatings made from the invention high purity material was found to have significantly improved sintering resistance relative to coatings made from current materials of lower purity. The invention materials are high purity zirconia and/or hafnia partially or fully stabilized by one or any combinations of the following stabilizers: yttria, ytterbia, scandia, lanthanide oxide and actinide oxide. Limits for impurity oxide, oxides other than the intended ingredients, that lead to significantly improved sintering resistance were discovered. High purity coating structures suitable for high temperature cycling applications and for application onto a substrate were provided. In one structure, the coating comprises a ceramic matrix, porosity and micro cracks. In another structure, the coating comprises a ceramic matrix, porosity, macro cracks and micro cracks. In another structure, the coating comprises ceramic columns and gaps between the columns. In another structure, the coating comprises ceramic columns, gaps between the columns and nodules distributing randomly in the gaps and columns.

    摘要翻译: 本发明涉及用于高温循环应用的高纯度氧化锆基和/或基于铪的材料和涂层。 发现由本发明的高纯度材料制成的热障涂层相对于由现有低纯度材料制成的涂层具有显着改善的耐烧结性。 本发明的材料是由以下稳定剂的一种或任何组合部分或完全稳定的高纯度氧化锆和/或铪:氧化钇,镱,钪,氧化镧和锕系氧化物。 发现了杂质氧化物,除目标成分以外的氧化物,导致显着提高耐烧结性的限制。 提供了适用于高温循环应用和应用于基底的高纯度涂层结构。 在一种结构中,涂层包括陶瓷基体,孔隙和微裂纹。 在另一种结构中,涂层包括陶瓷基体,多孔性,宏观裂纹和微裂纹。 在另一种结构中,涂层包括陶瓷柱和柱之间的间隙。 在另一种结构中,涂层包括陶瓷柱,柱之间的间隙和结节随机分布在间隙和柱中。