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Microstructural analysis of neutron-irradiation induced changes in polyester fibre studied using EPMA

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Abstract

Electron microscopy is an important characterization technique for the study of textile fibre as it gives more information on fabric wear, nature of fibre fracture, chemical degradation, abrasion, fatigue and many others. Electron Probe Micro Analyzer (EPMA) micrographs of virgin and some neutron-irradiated samples (graphite coated) are discussed. The filament diameter, D, of virgin PET fibre obtained from EPMA study was 12.5 μn. The surface topography of single filament distinctly reveals the core and sheath parts of the filament. The core diameter of the 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 of diameter 2.27 μm in the expanded core region. Due to irradiation, the sheath area crosslinks with expanded core region, which may be responsible for increase of strength and hardness of the polymer materials. Moreover, the micrograph at 3000 X magnifications clearly shows that there is no preferred orientation of the polymer in any direction confirming the isotropic nature of the sample.

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Authors and Affiliations

  1. Department of Physics, National Institute of Technology, Rourkela, 769 008, Orissa, India

    Biswajit Mallick, Simanchal Panigrahi, Tanmaya Badapanda, Biswanath Parija, Banita Behera & Manas Panigrahi

  2. Department of Metallurgical and Materials Engineering, National Institute of Technology, Rourkela, 769 008, Orissa, India

    Ramesh Chandra Behera & Madhumita Sarangi

Authors
  1. Biswajit Mallick
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  2. Ramesh Chandra Behera
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  3. Simanchal Panigrahi
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  4. Tanmaya Badapanda
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  5. Biswanath Parija
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  6. Banita Behera
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  7. Manas Panigrahi
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  8. Madhumita Sarangi
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Correspondence to Biswajit Mallick.

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Mallick, B., Behera, R.C., Panigrahi, S. et al. Microstructural analysis of neutron-irradiation induced changes in polyester fibre studied using EPMA. Indian J Phys 83, 525–529 (2009). https://doi.org/10.1007/s12648-009-0013-3

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  • DOI: https://doi.org/10.1007/s12648-009-0013-3

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