| PIP 工艺对2D C/ SiC-ZrB2 复合材料结构和力学性能的影响 |
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| 引用本文： | 童长青,成来飞,刘永胜,殷小玮,张立同.PIP 工艺对2D C/ SiC-ZrB2 复合材料结构和力学性能的影响[J].宇航材料工艺,2011,41(3). |
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| 作者姓名： | 童长青 成来飞 刘永胜 殷小玮 张立同 |
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| 作者单位： | 1. 龙岩学院化学与材料学院,龙岩,364000;西北工业大学,超高温结构复合材料国防科技重点实验室,西安,710072
2. 西北工业大学,超高温结构复合材料国防科技重点实验室,西安,710072 |
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| 基金项目： | 国家自然科学基金，国家杰出青年科学基金 |
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| 摘 要： | 采用CVI结合SI及PIP工艺制备2D C/SiC-ZrB2复合材料.研究了PIP工艺中循环浸渍次数及热处理对复合材料结构和力学性能的影响.比较了多孔C/SiC浸渍浆料后用PIP结合CVI致密化和仅用CVI致密化的效果.结果表明:浸渍裂解后,热处理温度相同,热处理次数对复合材料的开孔率和弯曲强度影响不大.2D C/SiC-ZrB2复合材料的弯曲强度不随PIP次数的增多而增加,PIP处理二次后,复合材料的强度逐渐增加,PIP处理五次,强度达到最大值,制备的复合材料开孔率为8.0%、弯曲强度为423 MPa.SI后用PIP结合CVI致密化比仅用CVI致密化效果好.
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| 关 键 词： | C/SiC-ZrB2复合材料 化学气相渗透 浆料浸渍 先驱体浸渍裂解 |
Effect of PIP Process on Microstructure and MechanicalProperties of 2D C/ SiC ZrB2 Composites |
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| Tong Changqing,Cheng Laifei,Liu Yongsheng,Yin Xiaowei,Zhang Litong.Effect of PIP Process on Microstructure and MechanicalProperties of 2D C/ SiC ZrB2 Composites[J].Aerospace Materials & Technology,2011,41(3). |
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| Authors: | Tong Changqing Cheng Laifei Liu Yongsheng Yin Xiaowei Zhang Litong |
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| Institution: | Tong Changqing1,2 Cheng Laifei2 Liu Yongsheng2 Yin Xiaowei2 Zhang Litong2(1 College of Chemistry & Materials Science,Longyan University,Longyan 364000)(2 National Key Laboratory of Thermostructure Composite Materials,Northwestern Polytechnical University,Xi'an 710072) |
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| Abstract: | 2D C/SiC-ZrB2 composites were fabricated by combining chemical vapor infiltration,slurry infiltration and polymer infiltration and pyrolysis(PIP) process.Effects of PIP cycle number and heat-treatment on the microstructure and mechanical properties of the C/SiC-ZrB2 were investigated.Two densification processes were compared: PIP combining with CVI and by using CVI alone on porous C/SiC infiltrated slurry.The results indicated that,at the same heat treatment temperature,the times of heat treatment had littl... |
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| Keywords: | C/SiC-ZrB2 composites Chemical vapor infiltration Slurry infiltration Polymer infiltration and pyrolysis |
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