Static lattice energy calculations of mixing and ordering enthalpy in binary carbonate solid solutions

Enthalpies of mixing and ordering in the binaries of the quaternary carbonate (Ca,Mg,Fe,Mn)CO3 solid solution have been modeled using static lattice energy minimization calculations. A set of self-consistent empirical potentials has been specially developed for this task. The calculations illustrate...

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Main Authors: Vinograd, V., Winkler, B., Putnis, A., Gale, Julian, Sluiter, M.
Format: Journal Article
Published: Elsevier Science BV 2006
Subjects:
Online Access:http://www.elsevier.com/locate/chemgeo
http://hdl.handle.net/20.500.11937/10667
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author Vinograd, V.
Winkler, B.
Putnis, A.
Gale, Julian
Sluiter, M.
author_facet Vinograd, V.
Winkler, B.
Putnis, A.
Gale, Julian
Sluiter, M.
author_sort Vinograd, V.
building Curtin Institutional Repository
collection Online Access
description Enthalpies of mixing and ordering in the binaries of the quaternary carbonate (Ca,Mg,Fe,Mn)CO3 solid solution have been modeled using static lattice energy minimization calculations. A set of self-consistent empirical potentials has been specially developed for this task. The calculations illustrate the importance of size mismatch in determining magnitudes of the enthalpies of mixing and ordering in the binaries. The enthalpy effects show positive correlation with the predicted temperatures of the order/disorder transitions in intermediate compounds with the dolomite structure. It is shown that the general behavior of the mixing enthalpy in high- and low-T limits can be constrained with a minimum set of sampled configurations.
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spelling curtin-20.500.11937-106672018-09-25T01:58:25Z Static lattice energy calculations of mixing and ordering enthalpy in binary carbonate solid solutions Vinograd, V. Winkler, B. Putnis, A. Gale, Julian Sluiter, M. Static lattice energy calculations Mixing properties Carbonates Enthalpies of mixing and ordering in the binaries of the quaternary carbonate (Ca,Mg,Fe,Mn)CO3 solid solution have been modeled using static lattice energy minimization calculations. A set of self-consistent empirical potentials has been specially developed for this task. The calculations illustrate the importance of size mismatch in determining magnitudes of the enthalpies of mixing and ordering in the binaries. The enthalpy effects show positive correlation with the predicted temperatures of the order/disorder transitions in intermediate compounds with the dolomite structure. It is shown that the general behavior of the mixing enthalpy in high- and low-T limits can be constrained with a minimum set of sampled configurations. 2006 Journal Article http://hdl.handle.net/20.500.11937/10667 10.1016/j.chemgeo.2005.08.023 http://www.elsevier.com/locate/chemgeo Elsevier Science BV restricted
spellingShingle Static lattice energy calculations
Mixing properties
Carbonates
Vinograd, V.
Winkler, B.
Putnis, A.
Gale, Julian
Sluiter, M.
Static lattice energy calculations of mixing and ordering enthalpy in binary carbonate solid solutions
title Static lattice energy calculations of mixing and ordering enthalpy in binary carbonate solid solutions
title_full Static lattice energy calculations of mixing and ordering enthalpy in binary carbonate solid solutions
title_fullStr Static lattice energy calculations of mixing and ordering enthalpy in binary carbonate solid solutions
title_full_unstemmed Static lattice energy calculations of mixing and ordering enthalpy in binary carbonate solid solutions
title_short Static lattice energy calculations of mixing and ordering enthalpy in binary carbonate solid solutions
title_sort static lattice energy calculations of mixing and ordering enthalpy in binary carbonate solid solutions
topic Static lattice energy calculations
Mixing properties
Carbonates
url http://www.elsevier.com/locate/chemgeo
http://hdl.handle.net/20.500.11937/10667