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Fundamentals

Joel Bernstein

in Polymorphism in Molecular Crystals

Published in print:
2007
Published Online:
January 2010
ISBN:
9780199236565
eISBN:
9780191707940
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199236565.003.0002
Subject:
Physics, Crystallography: Physics

This chapter presents the thermodynamic fundamentals of polymorphism. The Gibbs Phase Rule is reviewed, followed by its application to polymorphic systems. The concept of energy/temperature diagrams ... More


Phase diagrams

Adrian P Sutton

in Concepts of Materials Science

Published in print:
2021
Published Online:
September 2021
ISBN:
9780192846839
eISBN:
9780191938764
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780192846839.003.0002
Subject:
Physics, Condensed Matter Physics / Materials, Theoretical, Computational, and Statistical Physics

Temperature-composition phase diagrams are introduced as maps of the regions of stability of binary systems at constant pressure, usually atmospheric pressure at sea level. Their construction is ... More


When is a material stable?

Adrian P Sutton

in Concepts of Materials Science

Published in print:
2021
Published Online:
September 2021
ISBN:
9780192846839
eISBN:
9780191938764
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780192846839.003.0001
Subject:
Physics, Condensed Matter Physics / Materials, Theoretical, Computational, and Statistical Physics

This chapter is an introduction to classical thermodynamics that does not assume any knowledge of the subject. The significance of thermodynamic equilibrium in materials is discussed keeping in mind ... More


The Equilibrium State

Craig M. Bethke

in Geochemical Reaction Modeling: Concepts and Applications

Published in print:
1996
Published Online:
November 2020
ISBN:
9780195094756
eISBN:
9780197560778
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780195094756.003.0007
Subject:
Earth Sciences and Geography, Geochemistry

Aqueous geochemists work daily with equations that describe the equilibrium points of chemical reactions among dissolved species, minerals, and gases. To study an individual reaction, a geochemist ... More


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