Abstract
Polymeric sulphur nitride (SN) x has been recently found to undergo a stress-induced martensitic transformation from the normal monoclinic phase to a new orthorhombic phase. The theories of shear-induced transformations in crystalline solids developed by Bevis, Crocker and co-workers have been used to predict the shear modes between the two forms of (SN) x . A comparison has been made between the theoretically predicted and experimentally measured modes for (SN) x and the transformation has been compared with a similar one that is observed in polyethylene.
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Young, R.J., Baughman, R.H. Deformation mechanisms in polymer crystals. J Mater Sci 13, 55–61 (1978). https://doi.org/10.1007/BF00739273
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DOI: https://doi.org/10.1007/BF00739273