caa a22 4500 463227417 CHVBK 20180405153231.0 cr unu---uuuuu 170326e20070501xx s 000 0 eng 10.1007/s10853-006-1123-3 doi (NATIONALLICENCE)springer-10.1007/s10853-006-1123-3 Study on the thermal expansion properties of C/C composites [Elektronische Daten] [Xiaoling Liao, Hejun Li, Wenfeng Xu, Kezhi Li] Two different woven (2D and 3D) carbon/carbon composites (C/C) and a block carbon have been prepared by chemical vapor infiltration (CVI). The effects of the density and porosity of composites, preform architectures and heat treatment on the thermal expansion properties of the C/C composites were investigated. It is revealed that the coefficient of thermal expansion (CTE) of C/C composites is negative below 100°C, and the CTE values are inversely proportion to its porosity. Comparing with 2D C/C composites, 3D C/C composites have a better thermal stability. Heat treatment can increase the thermal stability of composites by changing interfacial thermal stress. The thermal expansion behavior of C/C composites is considered as the result of interaction between fibers and matrix. Springer Science+Business Media, LLC, 2007 Liao Xiaoling Research Center of Carbon/Carbon Composites, National Key Laboratory of Ultrahigh Temperature Composites, Northwestern Polytechnical University, 710072, Xi'an, China aut Li Hejun Research Center of Carbon/Carbon Composites, National Key Laboratory of Ultrahigh Temperature Composites, Northwestern Polytechnical University, 710072, Xi'an, China aut Xu Wenfeng Chemistry and Environment Science Department, Chongqing University of Arts and Sciences, 402160, Chongqing, China aut Li Kezhi Research Center of Carbon/Carbon Composites, National Key Laboratory of Ultrahigh Temperature Composites, Northwestern Polytechnical University, 710072, Xi'an, China aut Journal of Materials Science Springer US; http://www.springer-ny.com 42/10(2007-05-01), 3435-3439 0022-2461 42:10<3435 2007 42 10853 https://doi.org/10.1007/s10853-006-1123-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-006-1123-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Liao Xiaoling Research Center of Carbon/Carbon Composites, National Key Laboratory of Ultrahigh Temperature Composites, Northwestern Polytechnical University, 710072, Xi'an, China aut NATIONALLICENCE 700 1- Li Hejun Research Center of Carbon/Carbon Composites, National Key Laboratory of Ultrahigh Temperature Composites, Northwestern Polytechnical University, 710072, Xi'an, China aut NATIONALLICENCE 700 1- Xu Wenfeng Chemistry and Environment Science Department, Chongqing University of Arts and Sciences, 402160, Chongqing, China aut NATIONALLICENCE 700 1- Li Kezhi Research Center of Carbon/Carbon Composites, National Key Laboratory of Ultrahigh Temperature Composites, Northwestern Polytechnical University, 710072, Xi'an, China aut NATIONALLICENCE 773 0- Journal of Materials Science Springer US; http://www.springer-ny.com 42/10(2007-05-01), 3435-3439 0022-2461 42:10<3435 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer