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Chin J Mater Res  1991, Vol. 5 Issue (5): 437-442    DOI:
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ANALYSIS OF THERMALLY ACTIVATED PLASTIC DEFORMATION FOR GLASSY POLYMER PMMA
ZHU Xixiong ZHU Guorui HUANG Xusheng (Ningbo University)
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ZHU Xixiong ZHU Guorui HUANG Xusheng (Ningbo University). ANALYSIS OF THERMALLY ACTIVATED PLASTIC DEFORMATION FOR GLASSY POLYMER PMMA. Chin J Mater Res, 1991, 5(5): 437-442.

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Abstract  The uniaxial compression stress-strain curves of loading-and-unloadingcycle and yielding stresses σ_s for PMMA in the ranges of T=233-343K and ε_t=1.0x10~(-4)-1.0x10~(-1)s~(-1) are measured.According to Eyring theory of absolut reaction rates,theexact the
Key words:  polymethyl methacrylate(PMMA)      thermally activated plastic deformation      activation volume      activation enthalpy      actcvation entropy     
Received:  25 October 1991     
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