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《Journal of Functional Materials》 2015-08
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Research on fracture toughness of radiation-shielding Gd~(3+)-containing organic glass

LIU Zi-hai;YAN Chang-hao;SONG Jia;HU Li-min;WANG Chun-hong;WANG Zhi-feng;ZHANG Ming;College of Chemistry and Chemical Engineering,Yangzhou University;College of Mechanical Engineering,Yangzhou University;  
The plane-strain fracture toughness KICof Gd3 +-containing organic glass was investigated from the compact tension test,and the fractographs of compact tension specimen on the fracture surfaces was analysed. The fracture process under tensile stress of Gd3 +-containing organic glass has been examined via in situ environmental scanning electron microscopy( ESEM). We are convinced that crack-craze model on crack tip for slow crack growth and secondary fracture model for fast crack growth of Gd3 +-containing organic glass may be used to explain all phenomenons which were observed in this experiments.
【Fund】: 国防基础科研计划基金对本项目的大力支持
【CateGory Index】: TQ320.1
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