Microvoid evolution in carbon fibers during graphitization for the preparation of carbon/carbon composites

Wang, 2014, Variation of thermal expansion of carbon/carbon composites from 850 to 2500 °C, Ceram Intern, 40, 1273, 10.1016/j.ceramint.2013.08.038 Sun, 2012, Effect of cycle time of in-situ polymerization of naphthalene on the densification and performance of C/C composites [J], New Carbon Materials, 279, 49 Fu, 2010, Anti-oxidation property of a multi-layer coating for carbon /carbon composites in a wind tunnel at 1500 oC [J], New Carbon Mater, 25, 279, 10.1016/S1872-5805(09)60033-0 Whit, 2008, Combustion joining of refractory materials: carbon-carbon composites, J Mater Res, 23, 160, 10.1557/JMR.2008.0008 Kulkarni, 1997, A model of global thermal conductivity in laminated carbon/carbon composites [J], Comp Sci Tech, 57, 277, 10.1016/S0266-3538(96)00116-9 Sauder, 2004, The tensile behavior of carbon fibers at high temperatures up to 2400 °C [J], Carbon, 42, 715, 10.1016/j.carbon.2003.11.020 Xu, 2009, Graphitization of polyacrylonitrile carbon fibers and graphite irradiated byγ rays, Mater Lett, 63, 1814, 10.1016/j.matlet.2009.05.055 Watanabe, 1994, Nitrogen removal and carbonization of polyacrylonitrile with ultrafine metal particles at low temperatures [J], Carbon, 32, 329, 10.1016/0008-6223(94)90196-1 Takaku, 1996, The application of temperature-time superposition to the study of structural development in the heat-treatment of carbon fibers [J], Carbon, 34, 1449, 10.1016/0008-6223(96)88756-2 Moreton, 1967, Carbon fibers of high strength and high breaking strain [J], Nature, 213, 690, 10.1038/213690a0 Wu, 2012, Carbon layer structures and thermal conductivity of graphitized carbon fibers [J], J Mater Sci, 47, 2882, 10.1007/s10853-011-6118-z Crawshaw, 2000, A small angle X-ray scattering study of void structure in Tencel® cellulose fibers and the effects of physical treatments [J], Polym, 41, 4691, 10.1016/S0032-3861(99)00502-9 Cohaut, 1996, SAXS investigations on the porosity of pitch based carbon fibers [J], Carbon, 34, 674, 10.1016/0008-6223(96)85962-8 Shioya, 1985, Characterization of microvoids in polyacrylonitrile-based carbon fibers [J], J Appl Phys, 58, 4074, 10.1063/1.335588 Harris, 1997, High-resolution electron microscopy studies of non-graphitizing carbons [J], Phil Mag A, 76, 667, 10.1080/01418619708214028