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采用无压成型工艺制备了2D-Cf/SiC及复杂构件.结果表明:复合材料弯曲强度达到328MPa,断裂韧度达到14.9 MPa·m1/2,层间剪切强度达到35.9 MPa,同时材料也具有很好的高温抗氧化性能.利用本工艺制备了某型号发动机的尾喷管,并成功通过了应用部门的试车考核.

参考文献

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[2] Wulz H G;Trabandt U .Large integral hot CMC structures designed for future reusable launchers[AIAA-97-2485][R].
[3] Morscher G N .Stress-dependent matrix cracking in 2D woven SiC-fiber reinforced melt-infihrated SiC matrix composites[J].Composites Science and Techonology,2004,64:1311-1319.
[4] D. Hourlier-Bahloul .THE ROLE OF CHEMISTRY IN THE SYNTHESIS OF CERAMIC MATERIALS[J].Key engineering materials,2002(1):15-20.
[5] Lamouroux F;Camus G;Thebaut J .Oxidation behavior of 3D-C/SiC composites in two oxidizing environments[J].Computer Science & Technology,2001,61:977.
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