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Diffraction studies of craze structure
Author(s) -
Brown H. R.,
Sindoni Y.,
Kramer E. J.,
Mills P. J.
Publication year - 1984
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.760241013
Subject(s) - materials science , polystyrene , neutron , neutron diffraction , scattering , diffraction , neutron scattering , composite material , synchrotron , optics , nuclear physics , polymer , physics
Recent work using small angle scattering techniques to study craze structure is reviewed. Three different radiations, electrons, X‐rays, and neutrons were used to study four problems in the area. These were (1) the structure of crazes in thin films, (2) the structure of a single craze/crack in a bulk material, (3) the effect of organic environments, and (4), the effect of mechanical fatigue on craze structures. It is shown that the high intensity of a synchrotron source permits the examination of the process of growth and breakdown of a single craze in polystyrene and also the study in real time of the short‐ and long‐term changes during fatigue of crazes. The H/D neutron contrast effects for neutrons were used to study environmental crazes with the environment still present.