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    • 2. 发明授权
    • Method of manufacturing a hybrid structure
    • 制造混合结构的方法
    • US07351364B2
    • 2008-04-01
    • US10767012
    • 2004-01-29
    • Jay A. MorrisonGary B. MerrillSteven James VanceMichael A. Burke
    • Jay A. MorrisonGary B. MerrillSteven James VanceMichael A. Burke
    • B28B11/00B28B5/00B29C33/76
    • B28B7/342B28B11/08B28B19/00C04B2235/6028F05D2300/6033Y10S264/44
    • A method of manufacturing a hybrid structure (100) having a layer of CMC material (28) defining an interior passageway (24) and a layer of ceramic insulating material (18) lining the passageway. The method includes the step of casting the insulating material to a first thickness required for effective casting but in excess of a desired second thickness for use of the hybrid structure. An inner mold (14) defining a net shape desired for the passageway remains in place after the casting step to mechanically support the insulating material during a machining process used to reduce the thickness of the insulating material from the as-cast first thickness to the desired second thickness. The inner mold also provides support as the CMC material is deposited onto the insulating material. The inner mold may include a fugitive material portion (20) to facilitate its removal after the CMC material is formed.
    • 一种制造具有限定内部通道(24)的CMC材料层(28)和衬套通道的陶瓷绝缘材料层(18)的混合结构(100)的方法。 该方法包括将绝缘材料浇铸到有效铸造所需的第一厚度但超过所需的第二厚度以用于混合结构的步骤。 限定通道所需的净形状的内模(14)在铸造步骤之后保持就位,以在用于将绝缘材料的厚度从铸造第一厚度减小到期望的机械加工过程期间机械地支撑绝缘材料 第二厚度。 当CMC材料沉积到绝缘材料上时,内模还提供支撑。 内部模具可以包括短暂材料部分(20),以便在形成CMC材料之后便于其移除。
    • 9. 发明授权
    • In-situ formed thermal barrier coating for a ceramic component
    • 用于陶瓷部件的原位形成的热障涂层
    • US07402347B2
    • 2008-07-22
    • US11031796
    • 2005-01-07
    • Jay A. MorrisonDaniel G. ThompsonGary B. MerrillJay Edgar Lane
    • Jay A. MorrisonDaniel G. ThompsonGary B. MerrillJay Edgar Lane
    • B64C11/16B64C27/46F01D5/14B63H27/46
    • F01D5/147F04D29/388F05D2230/23F05D2300/601F05D2300/603F05D2300/614
    • A thermal barrier layer (20) is formed by exposing an oxide ceramic material to a thermal regiment to create a surface heat affected zone effective to protect an underlying structural layer (18) of the material. The heat affected surface layer exhibits a lower strength and higher thermal conductivity than the underlying load-carrying material; however, it retains a sufficiently low thermal conductivity to function as an effective thermal barrier coating. Importantly, because the degraded material retains the same composition and thermal expansion characteristics as the underlying material, the thermal barrier layer remains integrally connected in graded fashion with the underlying material without an interface boundary there between. This invention is particularly advantageous when embodied in an apparatus formed of an oxide-oxide ceramic matrix composite (CMC) material wherein reinforcing fibers (24) are anchored in the underlying load-carrying portion and extend into the non-structural thermal barrier portion to provide support and to function as surface crack arrestors. In one embodiment an airfoil (10) is formed of a stacked plurality of CMC plates having such a heat-affected thermal barrier layer formed thereon.
    • 通过将氧化物陶瓷材料暴露于热团来形成有效保护材料的下面的结构层(18)的表面热影响区域来形成热障层(20)。 受热影响的表层具有比下面的承载材料更低的强度和更高的热导率; 然而,它保持足够低的热导率以用作有效的热障涂层。 重要的是,由于降解的材料保持与下面的材料相同的组成和热膨胀特性,所以热屏障层保持与下面的材料以分级方式整体连接,而其间没有界面边界。 当本发明体现在由氧化物 - 氧化物陶瓷基质复合材料(CMC)材料形成的装置中时,特别有利的是,其中增强纤维(24)锚固在下面的承载部分并延伸到非结构性热障部分中,以提供 支持和作为表面裂纹器。 在一个实施例中,翼片(10)由在其上形成有这种受热影响的热阻挡层的多个CMC板堆叠形成。