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首页> 外文期刊>Journal of the European Ceramic Society >Shear strength enhancement of SiC-coated 3D C/SiC composite joints with a Ni-Ti-Nb multi-interlayer by interfacial microstructure tailoring
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Shear strength enhancement of SiC-coated 3D C/SiC composite joints with a Ni-Ti-Nb multi-interlayer by interfacial microstructure tailoring

机译：通过界面微结构剪裁与Ni-Ti-Nb多层间SiC涂覆的3D C / SiC复合接头的剪切强度提高

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摘要

SiC-coated three-dimensional (3D) C/SiC composites were successfully joined with a Ni-Ti-Nb multi-interlayer by spark plasma sintering (SPS). The interfacial microstructure, phase evolution, and mechanical properties of the as-prepared joints were investigated. A sawtooth-like interfacial structure was generated as a result of the non-uniform dissolution behavior of SiC during the joining process. This interfacial structure substantially enhanced the interfacial bonding strength of the composites. The evolution of the interfacial microstructure was correlated with the mechanical properties of the joints. Finally, a reliable joint free of microdefects with a shear strength of 108 +/- 5 MPa was obtained by precise tailoring of the interfacial microstructure.
机译：SiC涂覆的三维（3D）C / SiC复合材料通过火花等离子体烧结（SPS）成功地与Ni-Ti-Nb多相层连接。 研究了制备的接头的界面微观结构，相速和机械性能。 由于在连接过程期间SiC的不均匀溶解行为而产生锯齿状界面结构。 这种界面结构基本上增强了复合材料的界面键合强度。 界面微观结构的演化与关节的机械性能相关。 最后，通过精确剪裁界面微观结构，获得了可靠关节的可靠关节，其剪切强度为108 +/- 5MPa。

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