Magnetostriction and elasticity of body centered cubic Fe100−xBex alloys

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dc.contributor.author Clark, A.
dc.contributor.author Lograsso, Thomas
dc.contributor.author Wun-Fogle, M.
dc.contributor.author Restorff, J.
dc.contributor.author Lograsso, Thomas
dc.contributor.author Petculescu, G.
dc.contributor.department Ames Laboratory
dc.date 2018-02-13T15:15:02.000
dc.date.accessioned 2020-06-29T23:17:43Z
dc.date.available 2020-06-29T23:17:43Z
dc.date.copyright Thu Jan 01 00:00:00 UTC 2004
dc.date.embargo 2013-09-25
dc.date.issued 2004-06-01
dc.description.abstract <p>Magnetostriction measurements from 77 K to room temperature on oriented (100) and (110) disk samples of Fe<sub>93.9</sub>Be<sub>6.1</sub> and Fe<sub>88.7</sub>Be<sub>11.3</sub> reveal substantial increases in <em>λ</em><sub>100</sub>compared to iron. For the 11.3% alloy, <em>λ</em><sub>100</sub>=110 ppm, a sixfold increase above that of α-Fe. For the 6.1% alloy, <em>λ</em><sub>100</sub>=81 ppm, ∼40% and ∼170% greater than <em>λ</em><sub>100</sub> of comparable Fe–Ga and Fe–Al alloys, respectively, for <em>H</em>=15 kOe. Large differences exist between the values of <em>λ</em><sub>100</sub> and <em>λ</em><sub>111</sub> (<em>λ</em><sub>100</sub>>0, <em>λ</em><sub>111</sub><0) and their temperature dependencies. Elastic constants, <em>c</em><sub>11</sub>, <em>c</em><sub>12</sub>, and <em>c</em><sub>44</sub>, from 4 to 300 K were obtained on the same Fe–Be alloys. From these measurements, the magnetoelastic energy coefficients <em>b</em><sub>1</sub> and <em>b</em><sub>2</sub> were calculated. While the magnitudes of the magnetostrictions <em>λ</em><sub>100</sub> and <em>λ</em><sub>111</sub> are widely different, the magnitudes of <em>b</em><sub>1</sub> and <em>b</em><sub>2</sub> are within a factor of 2. The Fe–Be alloys are highly anisotropic magnetostrictively, elastically, and magnetoelastically. For Fe<sub>88.7</sub>Be<sub>11.3</sub> at room temperature <em>λ</em><sub>100</sub>/<em>λ</em><sub>111</sub>, 2<em>c</em><sub>44</sub>/(<em>c</em><sub>11</sub>−<em>c</em><sub>12</sub>), and <em>b</em><sub>1</sub>/<em>b</em><sub>2</sub> are −6.6, 3.55, and −1.86, respectively.</p>
dc.description.comments <p>The following article appeared in <em>Journal of Applied Physics</em> 95 (2004): 6942 and may be found at <a href="http://dx.doi.org/10.1063/1.1688676" target="_blank">http://dx.doi.org/10.1063/1.1688676</a>.</p>
dc.identifier archive/lib.dr.iastate.edu/ameslab_conf/34/
dc.identifier.articleid 1024
dc.identifier.contextkey 4630201
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath ameslab_conf/34
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/6610
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/ameslab_conf/34/a162.pdf|||Fri Jan 14 23:40:21 UTC 2022
dc.source.uri 10.1063/1.1688676
dc.subject.disciplines Condensed Matter Physics
dc.subject.disciplines Metallurgy
dc.subject.keywords iron alloys
dc.subject.keywords beryllium alloys
dc.subject.keywords magnetostriction
dc.subject.keywords magnetoelastic effects
dc.subject.keywords elastic constants
dc.subject.keywords magnetic anisotropy
dc.title Magnetostriction and elasticity of body centered cubic Fe100−xBex alloys
dc.type article
dc.type.genre conference
dspace.entity.type Publication
relation.isAuthorOfPublication 316ee29f-99a9-49bc-a048-0f43caf97aa5
relation.isOrgUnitOfPublication 25913818-6714-4be5-89a6-f70c8facdf7e
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