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    • 4. 发明授权
    • Methods for providing ceramic matrix composite components with increased thermal capacity
    • 提供具有增加的热容量的陶瓷基复合材料组件的方法
    • US06316048B1
    • 2001-11-13
    • US09613881
    • 2000-07-11
    • James Dale SteibelDavid Alan Utah
    • James Dale SteibelDavid Alan Utah
    • B05D112
    • C04B41/009C04B35/573C04B35/806C04B41/5059F01D5/284F01D5/288F05D2240/31F05D2260/2212F05D2260/2214Y02T50/67Y02T50/672Y02T50/673Y02T50/676C04B41/4539C04B41/5096C04B35/565
    • A method for enhancing the cooling capability of a turbine component made from a ceramic matrix composite. The method improves the thermal performance of the component by producing a surface having increased cooling capacity, thereby allowing the component to operate at a higher temperature. The method tailors the available surface area on the cooling surface of the composite component by depositing a particulate layer of coarse grained ceramic powders of preselected size onto the surface of the ceramic matrix composite component. The size of the particulate is selectively tailored to match the desired surface finish or surface roughness of the article. The article may be designed to have different surface finishes for different locations, so that the application of different sized powders can provide different cooling capabilities at different locations, if desired. The compositions of the particulates are chemically compatible with the ceramic material comprising the outer surface or portion of the ceramic matrix composite. The particulates are applied using a slurry and incorporated into the article by heating to an elevated temperature without melting the matrix, the particulates or the fiber reinforcement.
    • 一种用于增强由陶瓷基体复合材料制成的涡轮部件的冷却能力的方法。 该方法通过产生具有增加的冷却能力的表面来提高部件的热性能,从而允许部件在较高温度下操作。 该方法通过将预选尺寸的粗颗粒陶瓷粉末的颗粒层沉积到陶瓷基复合材料组件的表面上来调整复合组件的冷却表面上的可用表面积。 选择性地调整颗粒的尺寸以匹配制品的期望的表面光洁度或表面粗糙度。 该制品可以被设计成对于不同的位置具有不同的表面光洁度,使得不同尺寸的粉末的应用可以在不同的位置提供不同的冷却能力,如果需要的话。 颗粒的组成与包含陶瓷基质复合材料的外表面或部分的陶瓷材料化学相容。 使用浆料施加颗粒并通过加热到升高的温度而不熔化基质,颗粒或纤维增强物而掺入制品中。