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Dissipation by a crystallization process

Dorosz, Sven and Voigtmann, Thomas and Schilling, Tanja (2016) Dissipation by a crystallization process. Europhysics Letters, 113, p. 10004. EPLA. DOI: 10.1209/0295-5075/113/10004 ISSN 0295-5075

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Abstract

We discuss crystallization as a non-equilibrium process. In a system of hard spheres under compression at a constant rate, we quantify the amount of heat that is dissipated during the crystallization process. We interpret the dissipation as arising from the resistance of the system against phase transformation. An intrinsic compression rate is identified that separates a quasi-static regime from one of rapidly driven crystallization. In the latter regime the system crystallizes more easily, because new relaxation channels are opened, at the cost of forming a higher fraction of non-equilibrium crystal structures. We rationalize the change in crystallization mechanism by analogy with shear thinning, in terms of a kinetic competition between near-equilibrium relaxation and external driving.

Item URL in elib:https://elib.dlr.de/102657/
Document Type:Article
Title:Dissipation by a crystallization process
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Dorosz, SvenUNSPECIFIEDUNSPECIFIED
Voigtmann, Thomasthomas.voigtmann (at) dlr.deUNSPECIFIED
Schilling, TanjaUNSPECIFIEDUNSPECIFIED
Date:2016
Journal or Publication Title:Europhysics Letters
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:113
DOI :10.1209/0295-5075/113/10004
Page Range:p. 10004
Publisher:EPLA
ISSN:0295-5075
Status:Published
Keywords:crystallization, nonequilibrium process, dissipated heat, Monte Carlo simulation
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Research under Space Conditions
DLR - Research area:Raumfahrt
DLR - Program:R FR - Forschung unter Weltraumbedingungen
DLR - Research theme (Project):R - Vorhaben Materialwissenschaftliche Forschung (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Materials Physics in Space
Deposited By: Voigtmann, Dr.rer.nat. Thomas
Deposited On:29 Jan 2016 07:41
Last Modified:10 Jan 2019 15:47

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