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Indexed by:期刊论文

Date of Publication:2011-05-05

Journal:Journal of Alloys and Compounds

Included Journals:EI、Scopus

Volume:509

Issue:18

Page Number:5581-5586

ISSN No.:09258388

Abstract:In this study, we prepared monodisperse spherical particles of a desired diameter using [(Fe0.5Co0.5)0.75B 0.2Si0.05]96Nb4 alloy; the particles were prepared by using an atomization process developed by us. The particles have perfect sphericity and narrow size distribution along with a homogeneous composition. The phase transitions of particles from the fully glassy phase to the crystalline phase via mixed phase structures occurred as the particle diameter was increased; the particles produced in the fully glassy phase in an argon atmosphere had a diameter of less than 300   m. This allowed the estimation of the intrinsic critical cooling rate for the particles with a fully glassy phase, Rc:Rc varied in the range of 700-900 K/s and depended only on the initial temperature of the alloy melt. ? 2011 Elsevier B.V. All rights reserved.