Determination of liquid diffusion coefficients along a liquidus phase boundary

dc.contributor.author Lograsso, Thomas
dc.contributor.author Hellawell, A.
dc.contributor.department Ames National Laboratory
dc.date 2018-02-13T15:23:03.000
dc.date.accessioned 2020-06-29T23:25:20Z
dc.date.available 2020-06-29T23:25:20Z
dc.date.copyright Tue Jan 01 00:00:00 UTC 1991
dc.date.embargo 2013-09-27
dc.date.issued 1991-02-01
dc.description.abstract <p>A method for determination of liquid phase diffusion coefficients along the liquidus curve in a binary alloy is presented. The technique is similar to that proposed by Watson and Hunt [1] but is more applicable to a larger selection of alloy systems. The technique utilizes temperature gradient zone melting (TGZM) to produce compositional adjustments along the length of a stationary sample placed in a temperature gradient. Diffusion coefficients as a function of position and, hence, temperature in the sample are calculated from measurement of the compositional changes occurring during TGZM and the temperature profile in the alloy. Since coefficients can be measured over a wide range of temperatures, the activation energy for diffusion can also be determined. The technique is demonstrated for a Cu-85 wt pct Sn alloy.</p>
dc.description.comments <p>Copyright 1991 ASM International. This paper was published in <em>Metallurgical Transactions B</em> 22 (1991): 21–26, and is made available as an electronic reprint with the permission of ASM International. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplications of any material in this paper for a fee or for commercial purposes, or modification of the content of this paper are prohibited.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/ameslab_pubs/135/
dc.identifier.articleid 1133
dc.identifier.contextkey 4639784
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath ameslab_pubs/135
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/7677
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/ameslab_pubs/135/14.pdf|||Fri Jan 14 19:53:56 UTC 2022
dc.source.uri 10.1007/BF02672522
dc.subject.disciplines Metallurgy
dc.title Determination of liquid diffusion coefficients along a liquidus phase boundary
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication 316ee29f-99a9-49bc-a048-0f43caf97aa5
relation.isOrgUnitOfPublication 25913818-6714-4be5-89a6-f70c8facdf7e
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