Steiger 2005c: Unterschied zwischen den Versionen
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Michael Steiger (2005): Salts in Porous Materials: Thermodynamics of Phase Transitions, Modeling and Preventive Conservation.- In: Restoration of Buildings and Monuments, 11, 6, pp. 419-432 | |||
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== Abstract == | == Abstract == | ||
The thermodynamics of phase equilibria of salts in porous materials is discussed including all relevant phase transition reactions such as crystallization - dissolution, hydration - dehydration, and the freeze-thaw equilibrium of water. The treatment of binary systems, i.e. only one salt and water, yields binary phase diagrams that provide all information required for preventive conservation by environmental control. In the case of salt mixtures, a model approach is more appropriate to predict phase equilibria and safe ranges of environmental conditions. The properties of thermodynamic models are reviewed and several examples for the crystallization behaviour of mixed salt systems are provided. Finally, possible applications of thermodynamic models and their potential limits are discussed. | |||
== Volltext == | == Volltext == | ||
Version vom 12. Dezember 2009, 14:05 Uhr
<bibimport/>
Michael Steiger (2005): Salts in Porous Materials: Thermodynamics of Phase Transitions, Modeling and Preventive Conservation.- In: Restoration of Buildings and Monuments, 11, 6, pp. 419-432
Keywords[Bearbeiten]
Abstract[Bearbeiten]
The thermodynamics of phase equilibria of salts in porous materials is discussed including all relevant phase transition reactions such as crystallization - dissolution, hydration - dehydration, and the freeze-thaw equilibrium of water. The treatment of binary systems, i.e. only one salt and water, yields binary phase diagrams that provide all information required for preventive conservation by environmental control. In the case of salt mixtures, a model approach is more appropriate to predict phase equilibria and safe ranges of environmental conditions. The properties of thermodynamic models are reviewed and several examples for the crystallization behaviour of mixed salt systems are provided. Finally, possible applications of thermodynamic models and their potential limits are discussed.