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Ablative Properties of 4D Carbon/Carbon Composites by Combustion Test
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  • Journal title : Carbon letters
  • Volume 9, Issue 4,  2008, pp.316-323
  • Publisher : Korean Carbon Society
  • DOI : 10.5714/CL.2008.9.4.316
 Title & Authors
Ablative Properties of 4D Carbon/Carbon Composites by Combustion Test
Park, Jong-Min; Ahn, Chong-Jin; Joo, Hyeok-Jong;
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The factors that influence ablation resistance in fiber composites are properties of the reinforced fiber and matrix, plugging quantity of fiber, geometrical arrangement, crack, pore size, and their distributions. To examine ablation resistance according to distribution of crack and pore size that exist in carbon/carbon composites, this study produced various sizes of unit cells of preforms. They were densified using high pressure impregnation and carbonization process. Reinforced fiber is PAN based carbon fiber and composites were heat-treated up to . The finally acquired density of carbon/carbon composites reached more than . The ablation test was performed by a solid propellant rocket engine. The erosion rate of samples is below 0.0286 mm/s. In conclusion, in terms of ablation properties, the higher degree of graphitization is, the more fibers that are arranged vertically to the direction of combustion flame are, and the less interface between reinforced fiber bundle and matrix is, the better ablation resistance is shown.
Carbon/carbon composites;Ablation;Erosion rate;Carbon fiber;Combustion test;
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