Thermal barrier coating resistant to erosion and impact by particulate
matter
    2.
    发明授权
    Thermal barrier coating resistant to erosion and impact by particulate matter 失效
    热障涂层耐受侵蚀和颗粒物影响

    公开(公告)号:US5683825A

    公开(公告)日:1997-11-04

    申请号:US581819

    申请日:1996-01-02

    CPC分类号: C23C28/00

    摘要: A thermal barrier coating adapted to be formed on an article subjected to a hostile thermal environment while subjected to erosion by particles and debris, as is the case with turbine, combustor and augmentor components of a gas turbine engine. The thermal barrier coating is composed of a metallic bond layer deposited on the surface of the article, a ceramic layer overlaying the bond layer, and an erosion-resistant composition dispersed within or overlaying the ceramic layer. The bond layer serves to tenaciously adhere the thermal insulating ceramic layer to the article, while the erosion-resistant composition renders the ceramic layer more resistant to erosion. The erosion-resistant composition is either alumina (Al.sub.2 O.sub.3) or silicon carbide (SiC), while a preferred ceramic layer is yttria-stabilized zirconia (YSZ) deposited by a physical vapor deposition technique to have a columnar grain structure.

    摘要翻译: 一种隔热涂层,适于形成在经受恶劣热环境的制品上,同时受到颗粒和碎屑的侵蚀,如同燃气涡轮发动机的涡轮机,燃烧器和增压器部件的情况。 隔热涂层由沉积在物品表面上的金属粘合层,覆盖粘合层的陶瓷层和分散在陶瓷层内或覆盖陶瓷层的抗侵蚀组合物构成。 接合层用于将绝热陶瓷层牢固地粘附到制品上,而抗侵蚀组合物使得陶瓷层更耐侵蚀。 抗侵蚀组合物是氧化铝(Al 2 O 3)或碳化硅(SiC),而优选的陶瓷层是通过物理气相沉积技术沉积的具有柱状晶粒结构的氧化钇稳定的氧化锆(YSZ)。

    Method of forming a thermal barrier coating system
    5.
    发明授权
    Method of forming a thermal barrier coating system 有权
    形成热障涂层系统的方法

    公开(公告)号:US06447854B1

    公开(公告)日:2002-09-10

    申请号:US09621422

    申请日:2000-07-21

    IPC分类号: C23C1430

    CPC分类号: C23C14/083 C23C14/566

    摘要: A method for producing a thermal barrier coating system on an article that will be subjected to a hostile environment. The thermal barrier coating system is composed of a metallic bond coat and a ceramic thermal barrier coating having a columnar grain structure. The method generally entails forming the bond coat on the surface of a component, and then grit blasting the bond coat with an abrasive media having a particle size of greater than 80 mesh. The component is then supported within a coating chamber containing at least two ingots of the desired ceramic material. An absolute pressure of greater than 0.014 mbar is established within the chamber containing oxygen and an inert gas. Thereafter, the ceramic ingots are vaporized with an electron beam such that the vapor deposits on the surface of the component to form a layer of the ceramic material on the surface.

    摘要翻译: 一种在受到恶劣环境的制品上制备热障涂层系统的方法。 热障涂层系统由金属粘合涂层和具有柱状晶粒结构的陶瓷热障涂层组成。 该方法通常需要在部件的表面上形成粘合涂层,然后用具有大于80目的粒度的研磨介质喷砂粘结涂层。 然后将该组分支撑在包含至少两个所需陶瓷材料锭的涂覆室内。 在含有氧气和惰性气体的室内建立大于0.014毫巴的绝对压力。 此后,陶瓷锭用电子束蒸发,使得蒸汽沉积在部件的表面上以在表面上形成陶瓷材料层。

    Erosion-resistant thermal barrier coating
    6.
    发明授权
    Erosion-resistant thermal barrier coating 失效
    耐腐蚀热障涂层

    公开(公告)号:US5350599A

    公开(公告)日:1994-09-27

    申请号:US966911

    申请日:1992-10-27

    摘要: An article is protected by a thermal barrier coating system. The article includes a substrate having an outer surface and a thermal barrier coating system deposited upon the substrate. The thermal barrier coating system includes a porous region wherein the ceramic is present as a porosity-containing columnar grain structure extending substantially perpendicular to the substrate surface, and an erosion-resistant densified region overlying the porous region. The thermal barrier coating is preferably applied by rotating the substrate past a deposition source to deposit the columnar grains, and then halting or slowing the rotation while continuing the deposition of the erosion-resistant region.

    摘要翻译: 物品由热障涂层系统保护。 该制品包括具有外表面的基底和沉积在基底上的热障涂层系统。 热障涂层系统包括多孔区域,其中陶瓷作为基本上垂直于衬底表面延伸的含孔隙率的柱状晶粒结构以及覆盖多孔区域的抗侵蚀致密区域存在。 优选通过使基板旋转经过沉积源沉积柱状晶粒,然后在继续沉积抗侵蚀区域的同时停止或减慢旋转来施加热障涂层。

    Apparatus and method for gas phase coating of hollow articles
    7.
    发明授权
    Apparatus and method for gas phase coating of hollow articles 失效
    中空制品气相涂层装置及方法

    公开(公告)号:US5368888A

    公开(公告)日:1994-11-29

    申请号:US945755

    申请日:1992-09-16

    申请人: David V. Rigney

    发明人: David V. Rigney

    摘要: Apparatus and method for simultaneously coating interior and exterior surfaces of articles, such as advanced turbine airfoils, the interior surfaces defined by narrow, complex passageways. The apparatus and method, in addition to providing for simultaneous coating of interior and exterior surfaces, also permits additional control over the coating process by permitting control over the partial pressure of reactive gas introduced into the reaction chamber. The apparatus also permits for subsequent thermal treatment of the coated parts in an inert gas atmosphere with no intermediate cooling step thereby reducing costs while eliminating the potential for damage due to handling by the elimination of at least one handling operation.

    摘要翻译: 用于同时涂覆物品的内部和外部表面的装置和方法,例如先进的涡轮机翼型,由狭窄的复杂通道限定的内表面。 除了提供内表面和外表面的同时涂布之外,该设备和方法还允许通过允许控制引入反应室的反应气体的分压来对涂布过程进行附加控制。 该装置还允许在惰性气体气氛中随后热处理涂覆部件,而不需要中间冷却步骤,从而降低成本,同时消除由于通过消除至少一个操作操作而导致的损坏的可能性。

    Apparatus and method for gas phase coating of hollow articles
    8.
    发明授权
    Apparatus and method for gas phase coating of hollow articles 失效
    中空制品气相涂层装置及方法

    公开(公告)号:US5221354A

    公开(公告)日:1993-06-22

    申请号:US787466

    申请日:1991-11-04

    申请人: David V. Rigney

    发明人: David V. Rigney

    摘要: Apparatus and method for simultaneously coating interior and exterior surfaces of articles, such as advanced turbine airfoils, the interior surfaces defined by narrow, complex passageways. The apparatus and method, in addition to providing for simultaneous coating of interior and exterior surfaces, also permits additional control over the coating process by permitting control over the partial pressure of reactive gas introduced into the reaction chamber. The apparatus also permits for subsequent thermal treatment of the coated parts in an inert gas atmosphere with no intermediate cooling step thereby reducing costs while eliminating the potential for damage due to handling by the elimination of at least one handling operation.

    摘要翻译: 用于同时涂覆物品的内部和外部表面的装置和方法,例如先进的涡轮机翼型,由狭窄的复杂通道限定的内表面。 除了提供内表面和外表面的同时涂布之外,该设备和方法还允许通过允许控制引入反应室的反应气体的分压来对涂布过程进行附加控制。 该装置还允许在惰性气体气氛中随后热处理涂覆部件,而不需要中间冷却步骤,从而降低成本,同时消除由于通过消除至少一个操作操作而导致的损坏的可能性。