| 难熔金属化合物掺杂对先驱体转化2D C/SiC复合材料抗氧化性能影响 |
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| 引用本文： | 王其坤,陈朝辉,胡海峰,张玉娣.难熔金属化合物掺杂对先驱体转化2D C/SiC复合材料抗氧化性能影响[J].航空材料学报,2008,28(5). |
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| 作者姓名： | 王其坤 陈朝辉 胡海峰 张玉娣 |
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| 作者单位： | 国防科技大学,航天与材料工程学院,长沙,410073 |
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| 摘 要： | 提出在2D C/SiC复合材料基体中掺杂难熔金属化合物ZrB2,TaC,ZrC,制备了2D C/SiC-ZrB2,2D C/SiC-ZrC和2D C/SiC-TaC新型复合材料,考察了难熔金属化合物的引入对材料力学性能、抗氧化性能和微观结构的影响.结果表明,ZrB2和TaC的引入,能明显提高2DC/SiC复合材料的抗氧化性能;ZrC的引入对2D C/SiC复合材料的抗氧化性能极其不利.这归结于高温下ZrB2和TaC有助于在复合材料表层氧化形成ZrO2,B2O3和Ta2O5保护膜,阻止了材料内部的进一步氧化,从而提高了复合材料的抗氧化性能.
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| 关 键 词： | 先驱体转化 难熔金属化合物 抗氧化性能 |
Influence of Refractory Compounds Introduction on Oxidation Resistant Performance of 2D C/SiC Composites via Precursor Infiltration and Pyrolysis |
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| WANG Qi-kun,CHEN Zhao-hui,HU Hai-feng,ZHANG Yu-di.Influence of Refractory Compounds Introduction on Oxidation Resistant Performance of 2D C/SiC Composites via Precursor Infiltration and Pyrolysis[J].Journal of Aeronautical Materials,2008,28(5). |
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| Authors: | WANG Qi-kun CHEN Zhao-hui HU Hai-feng ZHANG Yu-di |
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| Institution: | WANG Qi-kun,CHEN Zhao-hui,HU Hai-feng,ZHANG Yu-di(College of Aerospace , Materials Engineering,National University of Defense Technology,Changsha 410073,China) |
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| Abstract: | Three composites of 2D C/SiC-ZrB2(TaC,ZrC) were prepared via introducing of refractory compounds(ZrB2,TaC,ZrC) into 2D C/SiC composites,and the influences upon mechanical,oxidation resistant performance and microstructures of 2D C/SiC composites were investigated.The results showed that the introduction of ZrB2 and TaC significantly increased the oxidation resistance performance of 2D C/SiC,while the introduction of ZrC decreased the oxidation resistance performance.The improved oxidation resistance perform... |
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| Keywords: | C/SiC |
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