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Temperature dependent crystallization of amorphous Y67Fe33 studied using kinetic small angle neutron scattering

Al-Jawad, Maisoon and Kilcoyne, Susan H. (2008) Temperature dependent crystallization of amorphous Y67Fe33 studied using kinetic small angle neutron scattering. Journal of Physics: Condensed Matter, 20 (39). p. 395230. ISSN 0953-8984

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    Abstract

    Temperature-resolved small angle neutron scattering (SANS) has been used to study the
    nucleation, growth kinetics and crystallite morphology in the Y–Fe system. Crystallization from
    amorphous Y67Fe33 to the YFe2 Laves phase via a novel ‘YFe’ intermediate phase has been
    followed to completion as a function of temperature from 180 to 500 ◦C. The SANS results
    agree well with published kinetic neutron diffraction data. Below 390 ◦C, diffraction data
    suggest that SANS arises solely from the contrast between crystalline Y and the Fe-rich
    amorphous matrix. Between 390 and 410 ◦C all temperature variables are seen to form a sharp
    peak. This suggests that critical scattering occurs at Tc ≈ 400 ◦C. This critical scattering implies
    that full crystallization of Y67Fe33 occurs over a very narrow (∼20 ◦C) temperature range.

    Item Type: Article
    Subjects: Q Science > QC Physics
    Schools: School of Applied Sciences
    Related URLs:
    Depositing User: Susan Kilcoyne
    Date Deposited: 06 Dec 2011 11:06
    Last Modified: 06 Dec 2011 16:05
    URI: http://eprints.hud.ac.uk/id/eprint/11986

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