Abstract
The deformation rate with a step of 325 nm has been measured under uniaxial compression at the initial stage of creep and shape recovery of a polymethyl methacrylate (PMMA) sample after unloading. The effect of low γ-ray doses and magnetic fields on the deformation has been studied. It has been shown that a weak pre-exposure of the PMMA sample structure to radiation and magnetic fields can cause a slight hardening in the microplasticity region. The deformation jump sizes have been determined on micro- and nanoscales. The effect of irradiation and magnetic fields manifests itself as redistributed contributions of various jumps to the deformation.
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Original Russian Text © V.V. Shpeizman, P.N. Yakushev, Zh.V. Mukhina, E.V. Kuznetsov, A.S. Smolyanskii, 2013, published in Fizika Tverdogo Tela, 2013, Vol. 55, No. 5, pp. 923–930.
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Shpeizman, V.V., Yakushev, P.N., Mukhina, Z.V. et al. Jumpwise deformation of polymethyl methacrylate in the microplasticity region. Phys. Solid State 55, 1002–1009 (2013). https://doi.org/10.1134/S1063783413050314
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DOI: https://doi.org/10.1134/S1063783413050314