|Author||Mallick, Biswajit ♦ Behera, Ramesh Chandra ♦ Panigrahi, Simanchal ♦ Badapanda, Tanmaya ♦ Parija, Biswanath ♦ Behera, Banita ♦ Panigrahi, Manas ♦ Sarangi, Madhumita|
|Publisher||Indian J. Phys.|
|Subject Domain (in DDC)||Natural sciences & mathematics ♦ Physics|
|Subject Keyword||Polyethylene terephthalate ♦ Neutron fluence ♦ EPMA|
|Abstract||Electron microscopy is an important characterization technique for thestudy of textile fibre as it gives more information on fabric wear, nature of fibrefracture, chemical degradation, abrasion, fatigue and many others. Electron ProbeMicro Analyzer (EPMA) micrographs of virgin and some neutron-irradiated samples(graphite coated) are discussed. The filament diameter, D, of virgin PET fibreobtained from EPMA study was 12.5 µn. The surface topography of single filamentdistinctly reveals the core and sheath parts of the filament. The core diameter ofthe virgin fibre was estimated to be 1.43 µm. The fibre irradiated at fluence 1 ×1012 n/cm2 shows radiation induced sphere like polymer balls or spherulites ofdiameter 2.27 µm in the expanded core region. Due to irradiation, the sheath areacrosslinks with expanded core region, which may be responsible for increase ofstrength and hardness of the polymer materials. Moreover, the micrograph at 3000 Xmagnifications clearly shows that there is no preferred orientation of the polymerin any direction confirming the isotropic nature of the sample.|
|Education Level||UG and PG|
|Learning Resource Type||Article|
|Journal||Indian J Phys|
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