期刊
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
卷 40, 期 2, 页码 225-231出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesa.2008.11.007
关键词
Carbon-carbon composites (CCCs); Foams; Mechanical properties; Microstructures
资金
- New Century Excellent Talents in University [NCET 05-0195]
Carbon foams and fibers reinforced carbon composites were prepared using chemical liquid-vaporized infiltration and pitch impregnation. The microstructure and mechanical properties of the composites were investigated. The results showed that the final density of these samples was in a range of 1.34-1.45 g/cm(3). The pores in carbon foams were filled with pyrocarbon and pitch carbon. The flexural and tensile strength of the composites increased gradually With increasing the content of carbon fibers, whereas the compressive stress went up to a maximum value of 35.9 MPa of 35.9 MPa at the fiber content of 7%. (C) 2008 Elsevier Ltd. All rights reserved.
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