THERMAL/ENVIRONMENTAL BARRIER COATING SYSTEM FOR SILICON-CONTAINING MATERIALS
    4.
    发明申请
    THERMAL/ENVIRONMENTAL BARRIER COATING SYSTEM FOR SILICON-CONTAINING MATERIALS 有权
    含硅材料的热/环境阻隔涂层系统

    公开(公告)号:US20060280962A1

    公开(公告)日:2006-12-14

    申请号:US11160185

    申请日:2005-06-13

    IPC分类号: B32B17/06 B32B19/00 B32B9/00

    摘要: A coating system for Si-containing materials, particularly Si-based composites used to produce articles exposed to high temperatures. The coating system is a compositionally-graded thermal/environmental barrier coating (T/EBC) system that includes an intermediate layer containing yttria-stabilized hafnia (YSHf) and mullite, alumina and/or an aluminosilicate, which is used in combination with an inner layer between a Si-containing substrate and the intermediate layer and a thermal-insulating top coat overlying the intermediate layer. The intermediate layer provides environmental protection to the silicon-containing substrate, and has a coefficient of thermal expansion between that of the top coat and that of the inner layer so as to serve as a transition layer therebetween. The intermediate layer is particular well suited for use in combination with an inner layer of an alkaline earth metal aluminosilicate (such as BSAS) and a top coat formed of YSZ or YSHf.

    摘要翻译: 用于含Si材料的涂层系统,特别是用于生产暴露于高温的制品的Si基复合材料。 涂层系统是一种组成分级的热/环境屏障涂层(T / EBC)系统,其包括含有氧化钇稳定的铪(YSHf)和莫来石,氧化铝和/或铝硅酸盐的中间层,其与内部 在含Si衬底和中间层之间的层和覆盖中间层的绝热顶涂层。 中间层为含硅基材提供环境保护,并且具有顶涂层与内层层之间的热膨胀系数,以便在其间作为过渡层。 中间层特别适用于与碱土金属硅铝酸盐(如BSAS)的内层和由YSZ或YSHf形成的顶层组合使用。

    GAMMA PRIME PHASE-CONTAINING NICKEL ALUMINIDE COATING
    10.
    发明申请
    GAMMA PRIME PHASE-CONTAINING NICKEL ALUMINIDE COATING 有权
    GAMMA PRIME相含镍镍铝涂层

    公开(公告)号:US20070071995A1

    公开(公告)日:2007-03-29

    申请号:US11162838

    申请日:2005-09-26

    IPC分类号: F03B3/12 B32B15/01 B23K35/00

    摘要: An intermetallic composition suitable for use as an environmentally-protective coating on surfaces of components used in hostile thermal environments, including the turbine, combustor and augmentor sections of a gas turbine engine. The coating contains the gamma-prime (Ni3Al) nickel aluminide intermetallic phase and either the beta (NiAl) nickel aluminide intermetallic phase or the gamma solid solution phase. The coating has an average aluminum content of 14 to 30 atomic percent and an average platinum-group metal content of at least 1 to less than 10 atomic percent, the balance of the coating being nickel, incidental impurities, and optionally hafnium.

    摘要翻译: 适用于在敌对热环境中使用的组件的表面上用作环境保护涂层的金属间组合物,包括燃气涡轮发动机的涡轮机,燃烧器和增压器部分。 该涂层含有γ-prime(Ni 3 Al 3)铝铝化物金属间相和β(NiAl)镍铝化物金属间相或γ固溶体相。 该涂层的平均铝含量为14〜30原子%,平均铂族金属含量为1〜10原子%以下,其余为镍,附带杂质,以及任选的铪。