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FRACTAL DIMENSION MEASUREMENT OF COMPOSITE FRACTURE SURFACES

Xie Zhengfang,Yang Shengliang,Yang Deming,Chen Zhaohui  
The fractal characteristics of SiCW/Al and Cf/SiC composites,fracture surfaces were investigated by measuring the fractal dimensions.The results showed that the fracture surfaces of these two composites possessed a typical fractal characteristic .The fractal dimension of Cf/SiC was 1.312 measured by slit island method,and that of SiCW/Al was 1.099 by vertical section method.The investigation proves the fractal dimension might be used to characterize the composite fracture surfaces in a quantitative fashion.
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