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Please use this identifier to cite or link to this item: http://hdl.handle.net/2080/258

Title: Analysis of microstress in neutron irradiated polyester fibre by X-ray diffraction technique
Authors: Mallick, B
Behera, R C
Patel, T
Keywords: Microstress
PET
neutron fluences
XRD
SEM
micro-Raman technique.
Issue Date: 2005
Publisher: Indian Academy of Sciences
Citation: Bulletin of Materials Science, Vol 28, Iss 6, P 593-598
Abstract: Microstresses developed in the crystallites of polymeric material due to irradiation of high-energy particle causes peak broadening and shifting of X-ray diffraction lines to lower angle. Neutron irradiation significantly changes the material properties by displacement of lattice atoms and the generation of helium and hydrogen by nuclear transmutation. Another important aspect of neutron irradiation is that the fast neutron can produce dense ionization at deep levels in the materials. The polyethylene terephthalate (PET) fibre of raw denier value, 78·2, were irradiated by fast neutron of energy, 4·44 MeV, at different fluences ranging from 1 × 10 9 n/cm2 to 1 × 1012 n/cm2. In the present work, the radiation heating microstresses developed in PET micro-crystallites was investigated applying X'Pert-MPD Philips Analytical X-ray diffractometer and the effects of microstresses in tensile strength of fibre measured by Instron have also been reported. The shift of 0·45 cm-1 in the Raman peak ...
Description: Copyright for this article belongs to Indian Academy of Sciences
URI: http://hdl.handle.net/2080/258
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