| 先驱体转化法制备2D C/SiC-ZrC复合材料中ZrC含量对材料结构性能影响研究 |
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| 引用本文： | 王其坤,胡海峰,陈朝辉.先驱体转化法制备2D C/SiC-ZrC复合材料中ZrC含量对材料结构性能影响研究[J].航空材料学报,2009,29(4):72-76. |
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| 作者姓名： | 王其坤 胡海峰 陈朝辉 |
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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： | 针对高超音速飞行器、可重复使用运载器和下一代火箭发动机等超高温使用环境的工况要求,提出在2D C/SiC复合材料中引入耐超高温ZrC填料.采用先驱体转化法制备了不同ZrC含量的2D C/SiC-ZrC新型复合材料,考察了ZrC含量对材料力学性能、抗烧蚀性能和组成结构的影响.结果表明,材料的弯曲强度和弯曲模量随着ZrC含量的增加有一定程度的下降,材料的抗烧蚀性能明显提高,其中ZrC含量最高(33.3vol%)的试样S-50弯曲强度和弯曲模量均最低,分别为192.1MPa和27.5GPa;经氧乙炔焰烧蚀考核60s后,表面温度达到2123℃,试样表现出最低的烧蚀率,线烧蚀率为0.004mm/s,质量烧蚀率为0.006g/s.
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| 关 键 词： | 先驱体转化 力学性能 抗烧蚀性能 微观结构 |
Effects of ZrC Content on Microstructure and Properties of 2D C/SiC-ZrC Composites via Precursor Infiltration and Pyrolysis |
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| WANG Qi-kun,HU Hai-feng,CHEN Zhao-hui.Effects of ZrC Content on Microstructure and Properties of 2D C/SiC-ZrC Composites via Precursor Infiltration and Pyrolysis[J].Journal of Aeronautical Materials,2009,29(4):72-76. |
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| Authors: | WANG Qi-kun HU Hai-feng CHEN Zhao-hui |
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| Institution: | College of Aerospace and Materials Engineering;National University of Defense Technology;Changsha 410073;China |
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| Abstract: | According to the working requirements of hypersonic spacecrafts,reusable space vehicles and next generation rocket engines operating at ultra-high temperature condition,a proposal to improve anti-ablative property of 2D C/SiC composites by introduction of ZrC filler was presented.2D C/SiC-ZrC composites with different ZrC contents were prepared via precursor infiltration and pyrolysis(PIP) process,and acclordingly the influence of ZrC contents upon the mechanical,anti-ablative,structural properties and comp... |
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| Keywords: | C/SiC-ZrC |
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