| 纤维表面PIP-SiC涂层对2D-SiC_f/SiC复合材料力学性能影响 |
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| 引用本文： | 刘海韬,程海峰,王军,唐耿平,周旺,郑文伟.纤维表面PIP-SiC涂层对2D-SiC_f/SiC复合材料力学性能影响[J].航空材料学报,2009,29(3):78-82. |
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| 作者姓名： | 刘海韬 程海峰 王军 唐耿平 周旺 郑文伟 |
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| 作者单位： | 国防科技大学,新型陶瓷纤维及其复合材料国防科技重点实验室,长沙,410073 |
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| 基金项目： | 总装备部预研项目，海军预研项目 |
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| 摘 要： | 采用低浓度先驱体溶液利用先驱体浸渍裂解(PIP)工艺在SiC纤维表面制备了SiC涂层,研究了浸渍裂解次数对纤维涂层形貌的影响.研究表明,采用10%的PCS先驱体溶液经3次浸渍裂解后可在纤维表面制得连续致密的SiC涂层.采用经涂层处理的SiC纤维布经热模压成型-先驱体浸渍裂解工艺制备了2D-SiCf/SiC复合材料,其弯曲强度随制备涂层浸渍裂解次数的增加先增后降,经3次浸渍裂解制备涂层的复合材料强度最高,由未经涂层处理的163.5MPa增大到245.9MPa,强度提高近50%.研究证明,SiC纤维表面SiC涂层使纤维在材料致密化过程所受的损伤减小,同时改善了界面,使复合材料强度明显提高.
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| 关 键 词： | PIP工艺 SiC涂层 力学性能 |
Effects of PIP-SiC Coating of SiC Fiber on Mechanical Properties of 2D-SiC_f/SiC Composites |
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| LIU Hai-tao,CHENG Hai-feng,WANG Jun,ZHOU Wang,TANG Geng-ping,ZHENG Wen-wei.Effects of PIP-SiC Coating of SiC Fiber on Mechanical Properties of 2D-SiC_f/SiC Composites[J].Journal of Aeronautical Materials,2009,29(3):78-82. |
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| Authors: | LIU Hai-tao CHENG Hai-feng WANG Jun ZHOU Wang TANG Geng-ping ZHENG Wen-wei |
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| Institution: | Key Lab.of Advanced Ceramic Fiber and Composites;College of Aerospace and Materials Engineering;National University of Defense Technology;Changsha;410073;China |
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| Abstract: | SiC coating of SiC fiber was prepared by Precursor Infiltration Pyrolysis(PIP) process using low concentration precursor solution,and effects of infiltration pyrolysis times on coating morphology were studied.The results show that the continuous and compact coating can be gained by three times of infiltration pyrolysis process using 10t%(mass fraction)PCS solution.The 2D-SiCf/SiC composites were fabricated by Hot Pressing-Precursor Infiltration Pyrolysis process using SiC fiber cloth containing SiC coating.... |
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| Keywords: | 2D-SiCf/SiC |
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