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Influence of multiple small-angle neutron scattering on diffraction peak broadening in ferritic steel

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    0443879 - ÚJF 2016 RIV US eng J - Journal Article
    Woo, W. - Em, V. - Shin, E. - Mikula, Pavol - Ryukhtin, Vasil
    Influence of multiple small-angle neutron scattering on diffraction peak broadening in ferritic steel.
    Journal of Applied Crystallography. Roč. 48, APR (2015), s. 350-356. ISSN 0021-8898. E-ISSN 1600-5767
    R&D Projects: GA ČR GB14-36566G; GA MŠMT(CZ) LM2011019
    Institutional support: RVO:61389005
    Keywords : peak broadening * small-angle neutron scattering * neutron diffraction * magnetic domain
    Subject RIV: BM - Solid Matter Physics ; Magnetism
    Impact factor: 2.570, year: 2015

    Peak broadening of neutron diffraction was studied at various neutron wavelengths (1.24-2.61 angstrom). As the neutron beam path through a specimen increased, significant peak broadening was observed in ferritic steel, but not in austenitic steel. The peak broadening was reduced under a magnetic field applied perpendicular to the beam direction. Small-angle neutron scattering results showed significant reduction in scattering intensities under a magnetic field of 1.2T. It is suggested that the peak broadening can be attributed to multiple small-angle neutron scattering by magnetic domains. Thus, a sufficiently strong magnetic field could enhance the deep penetration capability of neutron diffraction by reducing the peak broadening.
    Permanent Link: http://hdl.handle.net/11104/0246542

     
     
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