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    • 5. 发明授权
    • Optical reflector for reducing radiation heat transfer to hot engine parts
    • 用于减少辐射热量传递到热机部件的光学反射器
    • US07208230B2
    • 2007-04-24
    • US10651420
    • 2003-08-29
    • John Frederick AckermanPaul Vincent ArszmanBangalore Aswatha NagarajNicole Justis
    • John Frederick AckermanPaul Vincent ArszmanBangalore Aswatha NagarajNicole Justis
    • B32B15/00B32B15/04
    • F23M5/00C23C28/322C23C28/345C23C28/3455C23C30/00F01D5/288F05D2230/314F05D2230/90F05D2300/504F05D2300/611F23M2900/05004F23R3/007Y02T50/67Y02T50/672Y02T50/673Y10T428/12
    • A high temperature gas turbine component for use in the gas flow path that comprises a specular optical reflector coating system. A thin specular optical reflector coating system is applied to the gas flow path of the component, that is, the surface of the component that forms a boundary for hot combustion gases. The component typically includes a thermal barrier coating overlying the high temperature metallic component that permits the component to operate at elevated temperatures. The thermal barrier coating must be polished in order to provide a surface that can suitably reflect the radiation into the gas flow path. The thin reflector coating system comprises a thin high temperature and corrosion resistant refractory stabilizing layer, which is applied over a thin reflective metal layer, which is applied over a thin high temperature and corrosion resistant refractory sealing layer. The coating system is applied over the polished thermal barrier coating by a process that can adequately adhere the reflector to the polished surface without increasing the roughness of the surface. The coating system reflects radiation back into the hot gas flow path or into the atmosphere. The reflected radiation is not focused onto any other hardware component. The design of the component is such that the radiation is returned to the gas flow path or sent to the atmosphere rather than absorbed into a component that only serves to increase the temperature of such a component.
    • 一种用于气体流路的高温燃气轮机部件,包括镜面光反射涂层系统。 将薄镜面光反射涂层系统应用于部件的气体流动路径,即构成热燃气体边界的部件的表面。 该部件通常包括覆盖高温金属部件的热障涂层,其允许部件在升高的温度下操作。 必须抛光热障涂层,以便提供可以适当地将辐射反射到气体流动路径中的表面。 薄反射器涂层系统包括薄的耐高温和耐腐蚀的耐火稳定层,其被涂覆在薄的反射金属层上,其被涂覆在薄的耐高温和耐腐蚀的耐火密封层上。 涂层系统通过可以将反射器充分地粘附到抛光表面而不增加表面粗糙度的方法施加在抛光的热障涂层上。 涂层系统将辐射反射回热气流路径或大气中。 反射的辐射没有集中在任何其他硬件组件上。 部件的设计使得辐射返回到气体流动路径或送到大气中,而不是被吸收到仅用于增加这种部件的温度的部件中。