无机材料学报

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磁场处理基体中间相后单向C/C复合材料的力学性能研究

周少荣; 白世鸿; 乔生儒; 孙晓燕   

  1. 西北工业大学401教研室; 西安710072
  • 收稿日期:1996-06-24 修回日期:1996-09-09 出版日期:1997-08-20 网络出版日期:1997-08-20

Study of Mechanical Properties of Unidirectional C/C Composites Fabricated with Mesophase Pitch in a Magnetic Field

ZHOU Shaorong; BAI Shihong; QIAO Shengru; SUN Xiaoyan   

  1. 401 Faculty; Northwestern Polytechnical University Xi an 710072 China
  • Received:1996-06-24 Revised:1996-09-09 Published:1997-08-20 Online:1997-08-20

摘要: 本工作利用0.8T强磁场处理单向C/C复合材料的沥青中间根基体后发现其界面层呈TOG弱界面结构(碳层片垂直于纤维),且磁场处理基体中间相后,单向C/C复合材料的弯曲强度稍有下降,但其韧性却有较大幅度地提高,并进一步研究了此种界面结构对单向C/C复合材料力学性能的影响.

关键词: 强磁场, C/C复合材料, 中间相, 取向, 界面层, 弯曲性能

Abstract: It is found that the interface in unidirectional C/C composits fabricated with mesophase pitch in O.8T magnetic field belongs to TOG (Transversely Oritented Graphite), a kind of weak interface in the composites, and the flexural strength of this kind of composite decreases slighty. In addition its ductility increases strongly. The work here is an effort to investigate the influence of TOG on the mechanical propertics of the composites.

Key words: strong magnetic field, C/C composites, pitch mesophase, orientation, interface, flex-ural strength