无机材料学报 ›› 2013, Vol. 28 ›› Issue (7): 763-768.DOI: 10.3724/SP.J.1077.2013.12556 CSTR: 32189.14.SP.J.1077.2013.12556

• 研究论文 • 上一篇    下一篇

C/SiC复合材料有序多孔陶瓷接头的制备及其连接技术研究

王 浩, 周卿军, 简 科, 邵长伟, 朱旖华   

  1. (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)
  • 收稿日期:2012-09-13 修回日期:2012-12-01 出版日期:2013-07-20 网络出版日期:2013-06-19
  • 基金资助:

    国家自然科学基金(50702075, 51172280); 湖南省杰出青年基金(12JJ1008); 湖南省高校科技创新团队支持计划(2012)

Preparation of Ordered Porous Ceramic Joint on C/SiC Composites and Its Joining Technique

WANG Hao, ZHOU Qing-Jun, JIAN Ke, SHAO Chang-Wei, ZHU Yi-Hua   

  1. (Science and Technology on Advanced Ceramic Fibers and Composites Laboratory, National University of Defense Technology, Changsha 410073, China)
  • Received:2012-09-13 Revised:2012-12-01 Published:2013-07-20 Online:2013-06-19
  • Supported by:

    National Natural Science Foundation of China (50702075, 51172280); Hunan Provincial Science Fund for Distinguished Young Scholars (12JJ1008); Aid Program for Science and Technology Innovative Research Team in Higher Educational Institutions of Hunan Province (2012)

摘要: 采用stöber法制备出单分散氧化硅小球, 并以此为模板, 结合先驱体转化技术成功制备出C/SiC复合材料纳米有序多孔陶瓷接头, 并对该接头制备工艺条件作了优化。对制备出的C/SiC多孔陶瓷接头分别采用先连后浸法(SJM)和直接浸渍法(DSM)进行了连接。结果显示, 两种方法连接的连接件的抗弯强度分别达82.4和20.5 MPa, 表明C/SiC多孔陶瓷接头采用SJM连接较好。

关键词: C/SiC复合材料, 连接, 先驱体转化技术, 模板技术, 有序多孔陶瓷接头

Abstract: Mono-dispersed silica spheres were prepared as template by st?ber method. Based on this template, the ordered nanoporous ceramic joints on the C/SiC composites were successfully fabricated for the first time by preceramic polymer techniques and the condition was optimized. Two different joining methods, directly soaking (DSM) and soaking after the first joining (SJM), were used for joining the ordered nanoporous ceramic joints of the C/SiC composites. The result shows that the bending strength of the joints by DSM and SJM is about 20.5 and 82.4 MPa, respectively, suggesting SJM more suitable for joining C/SiC composites.

Key words: C/SiC composites, joining, precursor conversion technique, template technique, ordered nanoporous ceramic joint

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