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    Thermal/environmental barrier coating with transition layer for silicon comprising materials
    2.
    发明公开
    Thermal/environmental barrier coating with transition layer for silicon comprising materials 有权
    ä。ms es。。。。

    公开(公告)号：EP1683775A2

    公开(公告)日：2006-07-26

    申请号：EP05257004.1

    申请日：2005-11-14

    申请人： GENERAL ELECTRIC COMPANY

    发明人： Spitsberg, Irene ,  Govern, Christine ,  Nagaraj, Bangalore Aswatha ,  Hazel, Brian Thomas ,  Mitchell, David Joseph

    IPC分类号： C04B41/89 ,  C23C4/10 ,  F01D5/28

    CPC分类号： C04B41/009 ,  C04B41/52 ,  C04B41/89 ,  C23C28/042 ,  C23C28/048 ,  F01D5/288 ,  Y10T428/12576 ,  Y10T428/12667 ,  Y10T428/12729 ,  C04B41/4527 ,  C04B41/5024 ,  C04B41/5037 ,  C04B41/5027 ,  C04B41/5042 ,  C04B41/5051 ,  C04B2111/00405 ,  C04B41/5044 ,  C04B41/522 ,  C04B41/4529 ,  C04B35/565 ,  C04B35/584 ,  C04B35/806

    摘要： An article (10) comprising a substrate (12) formed of a silicon-comprising material, such as an article (10) exposed to the hostile thermal environment of a gas turbine engine. The article (10) further comprises an environmental barrier layer (16), e.g., an alkaline earth metal aluminosilicate, and a top coat comprising zirconia or hafnia stabilized with up to about 10 mole % of an oxide of a metal selected from the group consisting of magnesium, calcium, scandium, yttrium, and lanthanide metals, and mixtures thereof. The article (10) further comprises a transition layer (20) between the environmental barrier layer (16) and the top coat (18), the transition layer (20) comprising zirconia or hafnia stabilized with up to about 10 mole % of an oxide of a metal selected from the group consisting of magnesium, calcium, scandium, yttrium, and lanthanide metals; and a low CTE oxide selected from the group consisting of niobia and tantala; and mixtures thereof. A method for preparing a thermal/environmental barrier coating system (14) on a substrate (12) formed of a silicon-comprising material is also disclosed.

    摘要翻译： 一种物品（10），包括由诸如暴露于燃气涡轮发动机的敌对热环境的物品（10）的含硅材料形成的基底（12）。 制品（10）还包括环境阻挡层（16），例如碱土金属铝硅酸盐，以及包含氧化锆或铪的顶涂层，其用至多约10摩尔％的金属氧化物稳定，所述金属氧化物选自 的镁，钙，钪，钇和镧系金属，及其混合物。 所述物品（10）还包括在所述环境阻挡层（16）和所述顶涂层（18）之间的过渡层（20），所述过渡层（20）包含用至多约10摩尔％氧化物稳定的氧化锆或铪 选自镁，钙，钪，钇和镧系金属的金属; 和选自iobia和tantala的低CTE氧化物; 及其混合物。 还公开了一种在由含硅材料形成的基底（12）上制备热/环境屏障涂层系统（14）的方法。