9781461283799 - Structural and Magnetic Phase Transitions in Minerals: 7 (Advances in Physical Geochemistry) (11 resultados)

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Taschenbuch. Condición: Neu. Druck auf Anfrage Neuware - Printed after ordering - Phase transitions in minerals are of interest to a wide spectrum of scientists - geolo gists, mineralogists, solid state chemists, and physicists. We have now reached the point where mean field theory or Landau Theory of phase transitions as a function of temperature, pressure, or chemical composition can be usefully applied to natural materials, resulting in an improved understanding of the thermodynamics of signifi cant constituents of the earth. Given the chemical complexity of so many silicate solid solutions, there are two distinct approaches to the problems posed by common minerals: one is to con centrate on model compounds which could be synthetic analogs or natural end members; the other is to work on typical minerals, with all the disorder and inhomogeneity that this implies. Model compounds provide the elements needed to build up a realistic understanding of the thermodynamic behavior of natural inor ganic materials in all their complexity. In the first part of the book, a number of papers are devoted to structural phase transitions in quartz, Na-and Ca-feldspars, MgSi0 perovskite, and PbI , where Landau Theory and lattice and molecular 3 2 dynamics have been used to explain or predict thermodynamic behavior. A different thermodynamic approach has been used to understand phase separation and atomic ordering in solid solutions such as olivines, pyroxenes, rhombohedral carbonates and oxides. E. Salje (Chapter 1) applies the Landau Theory for the second-order phase transi tion to the feldspar end-members albite, NaAlSi0 , and anorthite, CaAlSi0 .

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Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Phase transitions in minerals are of interest to a wide spectrum of scientists - geolo gists, mineralogists, solid state chemists, and physicists. We have now reached the point where mean field theory or Landau Theory of phase transitions as a function of temperature, pressure, or chemical composition can be usefully applied to natural materials, resulting in an improved understanding of the thermodynamics of signifi cant constituents of the earth. Given the chemical complexity of so many silicate solid solutions, there are two distinct approaches to the problems posed by common minerals: one is to con centrate on model compounds which could be synthetic analogs or natural end members; the other is to work on typical minerals, with all the disorder and inhomogeneity that this implies. Model compounds provide the elements needed to build up a realistic understanding of the thermodynamic behavior of natural inor ganic materials in all their complexity. In the first part of the book, a number of papers are devoted to structural phase transitions in quartz, Na-and Ca-feldspars, MgSi0 perovskite, and PbI , where Landau Theory and lattice and molecular 3 2 dynamics have been used to explain or predict thermodynamic behavior. A different thermodynamic approach has been used to understand phase separation and atomic ordering in solid solutions such as olivines, pyroxenes, rhombohedral carbonates and oxides. E. Salje (Chapter 1) applies the Landau Theory for the second-order phase transi tion to the feldspar end-members albite, NaAlSi0 , and anorthite, CaAlSi0 . 260 pp. Englisch.

Condición: New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. 1. Toward a Thermodynamic Understanding of Feldspars: Order Parameters of Na-Feldspar and the I?-P? Phase Transition in Anorthite.- 2. Incommensurate Phase Transitions in Quartz and Berlinite.- 3. Phase Separation in Quadrilateral Pyroxenes and Olivines.- 4.

Condición: New. Print on Demand pp. 262 118 Figures, 49:B&W 6.14 x 9.21 in or 234 x 156 mm (Royal 8vo) Perfect Bound on White w/Gloss Lam.

Condición: New. PRINT ON DEMAND pp. 262.

Taschenbuch. Condición: Neu. This item is printed on demand - Print on Demand Titel. Neuware -1. Toward a Thermodynamic Understanding of Feldspars: Order Parameters of Na-Feldspar and the I -P Phase Transition in Anorthite.- 2. Incommensurate Phase Transitions in Quartz and Berlinite.- 3. Phase Separation in Quadrilateral Pyroxenes and Olivines.- 4. Multicritical Phase Relations in Minerals.- 5. Equation of State and Possible Critical Phase Transitions in MgSiO3 Perovskite at Lower-Mantle Conditions.- 6. High-Spin to Low-Spin Transition of Iron(II) Oxides at High Pressures: Possible Effects on the Physics and Chemistry of the Lower Mantle.- 7. Molecular Dynamics Studies of Polymorphism of SiO2 at High Pressures: A Possible New Cubic Polymorph with High Density.- 8. Charge Localization and Associated Crystallographic and Magnetic Phase Transitions in Ilvaite, a Mixed Valence Iron Silicate.- 9. Magnetic Phase Transitions in Silicate Minerals.- 10. Magnetic Phase Transition in Olivines M2SiO4 (M = Mn, Fe, Co, FexMn1 x).- 11. The Spin Glass State in Garnet Mixed Crystals: New Evidence from Neutron Scattering and Macroscopic Measurements.- 12. Polytypism and Equilibrium Phase Transitions: In Situ Observation of the Polytypic Phase Transition 2H-12R in PbI2.Springer-Verlag KG, Sachsenplatz 4-6, 1201 Wien 260 pp. Englisch.