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Magnetic Properties of Undercooled Co-based Alloys

Reutzel, S. and Herlach, D.M. (2004) Magnetic Properties of Undercooled Co-based Alloys. Material Science and Engineering A, 375-377, pp. 552-555.

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Official URL: http://dx.doi.org/10.1016/j.msea.2003.10.149

Abstract

Co-based melts in a glass flux can be undercooled nearly as strong as samples processed containerless by electromagnetic levitation. The undercooling technique is combined with the use of a Faraday-balance to measure magnetic susceptibility on highly undercooled melts. The magnetic susceptibility of Co and Co-Au is investigated as a function of temperature from stable liquid to undercooled liquid state using a Faraday-balance. When liquid Co-based alloys are undercooled the magnetisation steeply rises if temperature approaches the Curie temperature. The magnetisation is presented for Co and Co<sub>90</sub>Au<sub>10</sub> in solid and liquid state as a function of temperature. The results show that the magnetic susceptibility of the liquid undercooled samples follows a Curie-Weiss behaviour, from which Curie temperature and magnetic moment are inferred. In no case an undercooling below the Curie temperature was achieved.

Document Type:Article
Additional Information: LIDO-Berichtsjahr=2004,
Title:Magnetic Properties of Undercooled Co-based Alloys
Authors:
AuthorsInstitution or Email of Authors
Reutzel, S.Ruhr-Universität Bochum
Herlach, D.M.UNSPECIFIED
Date:2004
Journal or Publication Title:Material Science and Engineering A
Refereed publication:Yes
In ISI Web of Science:Yes
Volume:375-377
Page Range:pp. 552-555
Status:Published
Keywords:Unterkühlung von Materialien, magnetic susceptibility, undercooling, Co-Au alloy, crystal nucleation
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W FR - Forschung unter Weltraumbedingungen (old)
DLR - Research area:Space
DLR - Program:W FR - Forschung unter Weltraumbedingungen
DLR - Research theme (Project):W - Vorhaben Materialwissenschaftliche Forschung (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Materials Physics in Space > Institute of Space Simulation > Center for Solidification of Undercooled Melts (ZEUS)
Deposited By: elib DLR-Beauftragter
Deposited On:14 Jun 2006
Last Modified:14 Jan 2010 15:05

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