Measurements of fiber bundle interfacial properties of three-dimensionally reinforced carbon/carbon composites up to 2273 K

被引:13
作者
Aoki, Takuya
Yamane, Yuhsuke
Ogasawara, Toshio
Ogawa, Takeshi
Sugimoto, Sunao
Ishikawa, Takashi
机构
[1] Japan Aerosp Explorat Agcy, Inst Aerosp Technol, Adv Composite Technol Ctr, Mitaka, Tokyo 1810015, Japan
[2] Japan Aerosp Explorat Agcy, Aviat Program Grp, Chofu, Tokyo 1818522, Japan
[3] Aoyama Gakuin Univ, Fac Engn Sci, Dept Mech Engn, Sagamihara, Kanagawa 2298558, Japan
关键词
D O I
10.1016/j.carbon.2006.07.028
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Experimental techniques for evaluating the interfacial properties between fiber bundles and the matrix of three-dimension ally reinforced carbon/carbon composites were examined. Specially arranged fiber bundle push-out and pull-out tests were conducted up to 2273 K in vacuum. In these tests, a fiber bundle in the specimens was extruded or pulled out by external compressive or tensile loads. Post-fracture observations revealed that a shear fracture was successfully induced within the carbon matrices at the loaded fiber bundle interface. The interfacial shear strength tau(i)(max) and initial sliding stress tau(ini)(s) of the fiber bundle monotonically increased with the test temperature. The relief of residual thermal stress and increases in the frictional resistance and anchor effect at the fiber bundle interface were considered to be the major mechanisms that caused the enhancements. An increase in the heat treatment temperature during the processing of the composites resulted in a significant decrease in tau(i)(max) and tau(ini)(s). (c) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码:459 / 467
页数:9
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