Erosion resistant yttrium comprising metal with oxidized coating for plasma chamber components
    38.
    发明申请
    Erosion resistant yttrium comprising metal with oxidized coating for plasma chamber components 有权
    防腐蚀钇含有金属氧化涂层,用于等离子体室部件

    公开(公告)号:US20090162647A1

    公开(公告)日:2009-06-25

    申请号:US12004907

    申请日:2007-12-21

    IPC分类号: B32B15/04 B05D3/00

    摘要: An article which is resistant to corrosion or erosion by chemically active plasmas and a method of making the article are described. The article is comprised of a metal or metal alloy substrate having on its surface a coating which is an oxide of the metal or metal alloy. The structure of the oxide coating is columnar in nature. The grain size of the crystals which make up the oxide is larger at the surface of the oxide coating than at the interface between the oxide coating and the metal or metal alloy substrate, and wherein the oxide coating is in compression at the interface between the oxide coating and the metal or metal alloy substrate. Typically the metal is selected from the group consisting of yttrium, neodymium, samarium, terbium, dysprosium, erbium, ytterbium, scandium, hafnium, niobium or combinations thereof.

    摘要翻译: 描述了耐化学活性等离子体腐蚀或侵蚀的制品以及制造该制品的方法。 该制品由金属或金属合金基材组成,其表面上具有金属或金属合金的氧化物的涂层。 氧化物涂层的结构本质上是柱状的。 构成氧化物的晶体的晶粒尺寸在氧化物涂层的表面比在氧化物涂层和金属或金属合金基底之间的界面处的晶粒尺寸大,并且其中氧化物涂层在氧化物之间的界面处被压缩 涂层和金属或金属合金基材。 通常,金属选自钇,钕,钐,铽,镝,铒,镱,钪,铪,铌或其组合。