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Title: Enthalpy versus entropy: What drives hard-particle ordering in condensed phases?

Abstract

In support of mesoscopic-scale materials processing, spontaneous hard-particle ordering has been actively pursued for over a half-century. The generally accepted view that entropy alone can drive hard particle ordering is evaluated. Furthermore, a thermodynamic analysis of hard particle ordering was conducted and shown to agree with existing computations and experiments. Conclusions are that (i) hard particle ordering transitions between states in equilibrium are forbidden at constant volume but are allowed at constant pressure; (ii) spontaneous ordering transitions at constant pressure are driven by enthalpy, and (iii) ordering under constant volume necessarily involves a non-equilibrium initial state which has yet to be rigorously defined.

Authors:
 [1];  [1];  [1];  [1]
  1. Univ. of Rochester, Rochester, NY (United States)
Publication Date:
Research Org.:
Univ. of Rochester, Rochester, NY (United States). Lab. for Laser Energetics
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
Contributing Org.:
Laboratory for Laser Energetics, University of Rochester
OSTI Identifier:
1338249
Alternate Identifier(s):
OSTI ID: 1397550
Report Number(s):
1315
Journal ID: ISSN 0009-2614; 2016-197; 1315; 2270; TRN: US1701760
Grant/Contract Number:  
NA0001944
Resource Type:
Accepted Manuscript
Journal Name:
Chemical Physics Letters
Additional Journal Information:
Journal Volume: 660; Journal Issue: C; Journal ID: ISSN 0009-2614
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Anthamatten, Mitchell, Ou, Jane J., Weinfeld, Jeffrey A., and Chen, Shaw H. Enthalpy versus entropy: What drives hard-particle ordering in condensed phases?. United States: N. p., 2016. Web. doi:10.1016/j.cplett.2016.07.051.
Anthamatten, Mitchell, Ou, Jane J., Weinfeld, Jeffrey A., & Chen, Shaw H. Enthalpy versus entropy: What drives hard-particle ordering in condensed phases?. United States. doi:10.1016/j.cplett.2016.07.051.
Anthamatten, Mitchell, Ou, Jane J., Weinfeld, Jeffrey A., and Chen, Shaw H. Wed . "Enthalpy versus entropy: What drives hard-particle ordering in condensed phases?". United States. doi:10.1016/j.cplett.2016.07.051. https://www.osti.gov/servlets/purl/1338249.
@article{osti_1338249,
title = {Enthalpy versus entropy: What drives hard-particle ordering in condensed phases?},
author = {Anthamatten, Mitchell and Ou, Jane J. and Weinfeld, Jeffrey A. and Chen, Shaw H.},
abstractNote = {In support of mesoscopic-scale materials processing, spontaneous hard-particle ordering has been actively pursued for over a half-century. The generally accepted view that entropy alone can drive hard particle ordering is evaluated. Furthermore, a thermodynamic analysis of hard particle ordering was conducted and shown to agree with existing computations and experiments. Conclusions are that (i) hard particle ordering transitions between states in equilibrium are forbidden at constant volume but are allowed at constant pressure; (ii) spontaneous ordering transitions at constant pressure are driven by enthalpy, and (iii) ordering under constant volume necessarily involves a non-equilibrium initial state which has yet to be rigorously defined.},
doi = {10.1016/j.cplett.2016.07.051},
journal = {Chemical Physics Letters},
number = C,
volume = 660,
place = {United States},
year = {2016},
month = {7}
}

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