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材料工程  2017, Vol. 45 Issue (8): 43-48    DOI: 10.11868/j.issn.1001-4381.2015.000126
  研究论文 本期目录 | 过刊浏览 | 高级检索 |
后热处理对Cf/ZrC复合材料微观结构及性能的影响
陈红梅1,2, 祝玉林2, 王松2
1. 湖南涉外经济学院 机械工程学院, 长沙 410205;
2. 国防科学技术大学 新型陶瓷纤维及其复合材料重点实验室, 长沙 410073
Effect of Post Heat Treatment on Microstructure and Properties of Cf/ZrC Composites
CHEN Hong-mei1,2, ZHU Yu-lin2, WANG Song2
1. College of Mechanical Engineering, Hunan International Economics University, Changsha 410205, China;
2. Science and Technology on Advanced Ceramic Fibers and Composites Laboratory, National University of Defense Technology, Changsha 410073, China
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摘要 以C/C复合材料为基材、Zr2Cu合金为渗剂,采用低温反应熔渗工艺制备得到碳纤维增强碳化锆陶瓷基复合材料(Cf/ZrC),重点研究后热处理对Cf/ZrC复合材料微观结构及性能的影响。结果表明:经1400~2200℃热处理后,材料密度下降,开孔率增大;材料在后热处理过程中会发生残余富铜熔体的流失、ZrC基体体积分数的增加以及ZrC基体结构的破坏;后热处理造成材料力学性能下降,热处理温度达到2200℃时,材料的弯曲强度保留率仅为52.3%。
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陈红梅
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王松
关键词 Cf/ZrC复合材料热处理微观结构性能    
Abstract:Carbon fiber reinforced zirconium carbide ceramic matrix composites (Cf/ZrC) were fabricated by reactive melt infiltration at relative low temperature, C/C composites as substrate, Zr2Cu alloy as infiltrator. Effect of post heat treatment on microstructure and properties of Cf/ZrC composites was investigated. The results show that after different temperature heat treatments at 1400-2200℃, the density of the composites decreases, and the porosity increases. During post heat treating, the residual copper rich melt in the composites evaporates, the volume fraction of ZrC matrix increases and the damage to the microstructure of ZrC matrix occurs. The mechanical properties of the composite decrease after post heat treatments. The flexural strength retention rate of the composites is only 52.3%, when the heat treatment temperature reaches 2200℃.
Key wordsCf/ZrC composite    heat treatment    microstructure    property
收稿日期: 2015-01-26      出版日期: 2017-08-10
中图分类号:  TB33  
通讯作者: 王松(1976-),男,研究员,主要研究方向:非氧化物陶瓷及其复合材料的设计与制备,联系地址:湖南省长沙市开福区德雅路109号国防科技大学一院材料重点实验室(410073),E-mail:wangsong0731@163.com     E-mail: wangsong0731@163.com
引用本文:   
陈红梅, 祝玉林, 王松. 后热处理对Cf/ZrC复合材料微观结构及性能的影响[J]. 材料工程, 2017, 45(8): 43-48.
CHEN Hong-mei, ZHU Yu-lin, WANG Song. Effect of Post Heat Treatment on Microstructure and Properties of Cf/ZrC Composites. Journal of Materials Engineering, 2017, 45(8): 43-48.
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http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2015.000126      或      http://jme.biam.ac.cn/CN/Y2017/V45/I8/43
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