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    Self-Healing Environmental Barrier Coating
    2.
    发明申请
    Self-Healing Environmental Barrier Coating 有权
    自愈环保屏障涂层

    公开(公告)号：US20150159492A1

    公开(公告)日：2015-06-11

    申请号：US14407288

    申请日：2013-06-12

    Applicant: Directed Vapor Technologies International, Inc.

    Inventor： Derek Hass

    IPC: F01D5/28 ,  C23C14/10 ,  F01D25/00 ,  C23C14/08

    CPC classification number: F01D5/288 ,  C04B35/571 ,  C04B35/806 ,  C04B41/009 ,  C04B41/52 ,  C04B41/89 ,  C04B2235/5244 ,  C04B2235/614 ,  C04B2235/616 ,  C23C14/08 ,  C23C14/083 ,  C23C14/10 ,  C23C14/228 ,  C23C14/30 ,  F01D5/284 ,  F01D25/005 ,  F05D2300/6033 ,  C04B35/565 ,  C04B41/4529 ,  C04B41/5096 ,  C04B41/5059 ,  C04B41/5024 ,  C04B41/5042 ,  C04B41/5044 ,  C04B41/522

    Abstract: The present inventions incorporate self-healing mechanisms into current and future EBC systems. Such approaches have the potential to form environmental protection materials (i.e. thermally grown silicate compositions) in-situ to enable the ability to provide environmental protection to SiC based ceramics even in the event that cracks or voids form from within the EBC layer. In this disclosure, novel, self-healing EBC systems are disclosed along with coating synthesis techniques required to deposit the materials, microstructures and architectures. This research is anticipated to result in a thermal/environmental barrier coating system (T/EBC) that provides improved durability over current coatings. These advancements will aid the use of Si-based ceramics in a range of high temperature applications such a gas turbine engines and heat exchangers. These advances will not only benefit military engines, but also commercial and industrial engines requiring greater performance.

    Abstract translation: 本发明将自愈机制纳入当前和未来的EBC系统。 这种方法有可能就地形成环境保护材料（即热生长的硅酸盐组合物），以使得能够为SiC基陶瓷提供环境保护，即使在EBC层内形成裂纹或空隙的情况下。 在本公开中，公开了新颖的自愈EBC系统以及沉积材料，微结构和结构所需的涂层合成技术。 这项研究预计将导致热/环境屏障涂层系统（T / EBC），其提供比当前涂层更好的耐久性。 这些进步将有助于在一系列高温应用中使用Si基陶瓷，例如燃气涡轮发动机和热交换器。 这些进步将不仅有利于军事发动机，而且还需要更高性能的商业和工业发动机。

    Thermal/environmental barrier coating system for silicon-containing materials
    5.
    发明授权
    Thermal/environmental barrier coating system for silicon-containing materials 有权
    含硅材料的热/环境屏障涂层系统

    公开(公告)号：US07407718B2

    公开(公告)日：2008-08-05

    申请号：US11160185

    申请日：2005-06-13

    Applicant: Brian Thomas Hazel ,  Irene Spitsberg ,  Christine Govern ,  Bangalore Aswatha Nagaraj

    Inventor： Brian Thomas Hazel ,  Irene Spitsberg ,  Christine Govern ,  Bangalore Aswatha Nagaraj

    IPC: B32B9/00

    CPC classification number: C23C28/04 ,  C04B41/009 ,  C04B41/52 ,  C04B41/89 ,  F01D5/284 ,  F01D5/288 ,  Y10T428/12576 ,  C04B41/4527 ,  C04B41/5096 ,  C04B41/5037 ,  C04B41/5024 ,  C04B41/5031 ,  C04B41/5044 ,  C04B41/5042 ,  C04B41/4529 ,  C04B41/522 ,  C04B35/565 ,  C04B35/584 ,  C04B35/806

    Abstract: 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.

    Abstract translation: 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。

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