Thermodynamics and Kinetics of Glass

  • Reinhard ConradtEmail author
Part of the Springer Handbooks book series (SHB)


This chapter gives an overview of the thermodynamics of the glassy state and the kinetics of glass formation and relaxation. The emphasis is placed on thermodynamics. First, several characteristic features of glasses are discussed in relation to earlier definitions of the glassy state. Then, the glassy state is contrasted to equilibrium states by discussing glass formation versus crystallization, the glass transition versus equilibrium phase transitions, and relaxation phenomena typical of glasses. A major part is devoted to fundamental aspects of the thermodynamics of glasses, comprising a detailed discussion of enthalpy, entropy, and the kinetics of glass formation as derived by nonequilibrium thermodynamics. Another significant part focuses on the quantitative treatment of multicomponent glasses and glass melts by using the formalism of thermodynamics of mixed phases. Tools and models are presented allowing one to approach the properties of glasses relevant to industry. In terms of examples, the emphasis rests on oxide glasses, in specific, silicate glasses. The chapter closes with an outlook on future developments and on challenges for future research work.


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Authors and Affiliations

  1. 1.uniglassAC GmbHAachenGermany

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