Effect of oxidation on fracture toughness of a carbon/carbon composite

Chengyu Zhang; Kefei Yan; Shengru Qiao; Mei Li; Dong Han; Yong Guo

doi:10.1007/s11595-012-0578-0

Journal of Wuhan University of Technology Materials Science Edition ›› 2012, Vol. 27 ›› Issue (5) : 944 -947. DOI: 10.1007/s11595-012-0578-0

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Effect of oxidation on fracture toughness of a carbon/carbon composite

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Abstract

The fracture toughness of a carbon/carbon composites oxidized at different temperature for 1 h was measured. The fracture surfaces were examined by scanning electron microscopy (SEM). The results indicate that oxidation temperature has significant effects on the fracture toughness. Fracture toughness decreases with the increase of the weight loss. The SEM images reveal that the decrease of fracture toughness was mainly attributed to the oxidation of the interface in the composite.

Keywords

C/C composite / fracture toughness / oxidation

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Chengyu Zhang, Kefei Yan, Shengru Qiao, Mei Li, Dong Han, Yong Guo. Effect of oxidation on fracture toughness of a carbon/carbon composite. Journal of Wuhan University of Technology Materials Science Edition, 2012, 27(5): 944-947 DOI:10.1007/s11595-012-0578-0

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