Silicon Carbide Joints for Thermo-Mechanically Stable Assemblies

机译：用于热机械稳定组件的碳化硅接头

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For PCS derived joints, the shear strength is about 35% of monolithic SiC values. This joint is stable with temperature and in tested environments, except in wet oxygen at 1000°C. SiC interlayer joints have shear and bend strengths that are near monolithic SiC values (about 80%). These joints are stable with temperature and oxidizing environments; however they are expensive in processing. The Ceramatec Braze joint has bend strengths that are equivalent to monolithic SiC. However, the shear strengths are somewhat reduced compared to the monolithic values, but improve with exposure with the joint strength increasing as the joint material evolves. Further study is ongoing to determine the interactions of this joint microstructure and their effects on joint strength.

机译：对于PCS衍生的接头，剪切强度约为整体SiC值的35％。该接头在温度和测试环境中均稳定，但在1000°C的湿氧气中除外。 SiC夹层接头的剪切强度和弯曲强度接近单片SiC值（大约80％）。这些接头在温度和氧化环境下均稳定;但是它们的加工成本很高。 Ceramatec铜焊接头的弯曲强度与整体式SiC相当。但是，与整体值相比，抗剪强度有所降低，但随着暴露而提高，随着接头材料的发展，接头强度也随之提高。正在进行进一步的研究，以确定这种关节微结构的相互作用及其对关节强度的影响。

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《Annual meeting of the American Society for Precision Engineering》|2012年|252-255|共4页
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Merrill A. Wilson; Joseph R. Fellows; Hyrum S. Anderson; Charles A. Lewinsohn; Dennis Cavanaugh;
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Silicon Carbide Joints for Thermo-Mechanically Stable Assemblies

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