Abstract
Crystals of (SN) X were mechanically deformed and examined using transmission electron microscopy. Numerous kink bands with axes perpendicular to the chain axis were formed as part of the deformation process. The kink bands were observed to have the following characteristics: (1) high distortion beyond their edges, (2) ultimately full return of the material on either side of the kink band to the mean crystal orientation, (3) apparently random angles of kinking and (4) continuous change in orientation across the kink edge. It was noted, in describing how kink bands would form, that chain continuity poses problems that would not be present in simpler solids. A kink-band formation model is presented. In this model, particular attention is paid to chain continuity. By allowing elastic regions within the kink-band edge, it is possible to attain arbitrary kink angle.
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Petermann, J., Schultz, J.M. Deformation and defects in (SN) X kink bands. J Mater Sci 14, 891–896 (1979). https://doi.org/10.1007/BF00550721
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DOI: https://doi.org/10.1007/BF00550721