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dc.contributor.author	Arnold, Craig B.
dc.contributor.author	Herlach, Dieter M.
dc.contributor.author	Aziz, Michael
dc.contributor.author	Schwarz, Matthias
dc.date.accessioned	2009-04-21T03:24:01Z
dc.date.issued	1999
dc.identifier.citation	Arnold, Craig B., Michael J. Aziz, Matthias Schwarz and Dieter M. Herlach. Parameter-Free Test of Alloy Dendrite Growth Theory. Physical Review B 59, 334-343. The American Physical Society.	en
dc.identifier.issn	1098-0121	en
dc.identifier.uri	http://nrs.harvard.edu/urn-3:HUL.InstRepos:2797449
dc.description.abstract	In rapid alloy solidification the dendrite-growth velocity depends sensitively on the deviations from local interfacial equilibrium manifested by kinetic effects such as solute trapping. The dendrite tip velocity undercooling function was measured in dilute Ni~Zr! over the range 1–25 m/s and 50–255 K using electromagnetic levitation techniques and compared to theoretical predictions of the model of Trivedi and colleagues for dendritic growth with deviations from local interfacial equilibrium. The input parameter to which the model predictions are most sensitive, the diffusive speed VD characterizing solute trapping, was not used as a free parameter but was measured independently by pulsed laser melting techniques, as was another input parameter, the liquid diffusivity DL. Best-fit values from the pulsed laser melting experiment are VD526 m/s and DL 52.731029 m2/s. Inserting these values into the dendrite growth model results in excellent agreement with experiment with no adjustable parameters.	en
dc.description.sponsorship	Engineering and Applied Sciences	en
dc.language.iso	en_US	en
dc.publisher	The American Physical Society	en
dc.relation.isversionof	http://dx.doi.org/10.1103/PhysRevB.59.334	en
dash.license	LAA
dc.title	Parameter-Free Test of Alloy Dendrite Growth Theory	en
dc.relation.journal	Physical Review Series B 59	en
dash.depositing.author	Aziz, Michael

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