Reaction sintering of two-dimensional silicon carbide fiber-reinforced silicon carbide composite by sheet stacking method
Reaction sintering of two-dimensional silicon carbide fiber-reinforced silicon carbide composite by sheet stacking method
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DOI：
10.1016/j.jnucmat.2007.03.084
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发表时间：
2007-08
影响因子：
3.1
通讯作者：
Katsumi Yoshida;H. Mukai;M. Imai;K. Hashimoto;Y. Toda;Hideki Hyuga;N. Kondo;H. Kita;T. Yano
中科院分区：
文献类型：
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作者：
Katsumi Yoshida;H. Mukai;M. Imai;K. Hashimoto;Y. Toda;Hideki Hyuga;N. Kondo;H. Kita;T. Yano
为了进一步提高SiC/SiC复合材料的力学性能和热性能，并使二维机织SiC/SiC复合材料的制造工艺具有一定的灵活性，可以应用于较大零件的制造，采用片层堆积法通过反应烧结制备了二维机织SiC纤维增强SiC复合材料。研究了复合材料的烧结性能和力学性能。在本研究中，复合材料的相对密度约为90-93%，并且可以通过使用片材堆叠法的反应烧结获得致密的复合材料。C/SiC质量比为0.6的SiC/SiC复合材料的体积密度和最大弯曲强度高于C/SiC质量比为0.5或0.7的复合材料。其值分别为2.9g/cm ~ 3和200 MPa。然而，在这项研究中获得的复合材料断裂几乎脆性的方式，由于较低的纤维体积分数。
Two-dimensionally plain woven SiC fiber-reinforced SiC composite has been developed by reaction sintering using a sheet stacking method in order to further increase mechanical and thermal properties of the composite and to obtain flexibility of manufacturing process of 2D woven SiC/SiC composites which can be applied to the fabrication of larger parts. In addition, sinterability and mechanical properties of the composite were investigated. In this study, relative density of the composites was about 90–93% and a dense composite could be obtained by reaction sintering using the sheet stacking method. The bulk density and maximum bending strength of SiC/SiC composite with a C/SiC weight ratio of 0.6 were higher than that of the composite with C/SiC ratios of 0.5 or 0.7. The values were 2.9g/cm3and 200MPa, respectively. However, the composites obtained in this study fractured in almost brittle manner due to the lower fiber volume fraction.