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《Journal of Materials Science & Technology》 2006-02
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High Strength Silicon Carbide Foams and Their Deformation Behavior

Chong TIAN, Jinsong ZHANG, Xiaoming CAO, Qiang LIU and Wanping HU Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China  
Silicon carbide (SiC) foams with a continuously connected open-cell structure were prepared and characterized for their mechanical performance. The apparent densities of SiC foams were controlled between about 0.4 and 1.3 g/cm3, with corresponding compressive strengths ranging from about 13 to 60 MPa and flexural strengths from about 8 to 30 MPa. Compressive testing of the SiC foams yielded stress-strain curves with only one linear-elastic region, which is different from those reported on ceramic foams in literature. This can possibly be attributed to the existence of filaments with fine, dense and high strength microstructures. The SiC and the filaments respond homogeneously to applied loading.
【CateGory Index】: O613.72
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