Relaxation in glassforming liquids and amorphous solids

Angell, C A; Ngai, K L; McKenna, G B; McMillan, P F; Martin, S W

doi:10.1063/1.1286035

Title: Relaxation in glassforming liquids and amorphous solids

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Abstract

The field of viscous liquid and glassy solid dynamics is reviewed by a process of posing the key questions that need to be answered, and then providing the best answers available to the authors and their advisors at this time. The subject is divided into four parts, three of them dealing with behavior in different domains of temperature with respect to the glass transition temperature, T{sub g}, and a fourth dealing with ''short time processes.'' The first part tackles the high temperature regime T>T{sub g}, in which the system is ergodic and the evolution of the viscous liquid toward the condition at T{sub g} is in focus. The second part deals with the regime T{approx}T{sub g}, where the system is nonergodic except for very long annealing times, hence has time-dependent properties (aging and annealing). The third part discusses behavior when the system is completely frozen with respect to the primary relaxation process but in which secondary processes, particularly those responsible for ''superionic'' conductivity, and dopart mobility in amorphous silicon, remain active. In the fourth part we focus on the behavior of the system at the crossover between the low frequency vibrational components of the molecular motion and its high frequencymore »« less

Authors:

Angell, C A ^[1]; Ngai, K L ^[2]; McKenna, G B ^[3]; McMillan, P F ^[1]; Martin, S W ^[4]

Department of Chemistry, Arizona State University, Tempe, Arizona 85287-1604 (United States)
Naval Research Laboratory, Code 6807, Washington, DC 20375-5320 (United States)
Department of Chemical Engineering, Texas Tech University, Lubbock, Texas 79409-3121 (United States)
Materials Science and Engineering Department, Iowa State University, Ames, Iowa 50011-2070 (United States)

Publication Date:: Fri Sep 15 00:00:00 EDT 2000

OSTI Identifier:: 20217593

Resource Type:: Journal Article

Journal Name:: Journal of Applied Physics

Additional Journal Information:: Journal Volume: 88; Journal Issue: 6; Other Information: PBD: 15 Sep 2000; Journal ID: ISSN 0021-8979

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; AMORPHOUS STATE; LIQUIDS; VISCOSITY; RELAXATION TIME; PHASE TRANSFORMATIONS; GLASS; TRANSITION TEMPERATURE; AGING; IONIC CONDUCTIVITY; SILICON; CARRIER MOBILITY

Citation Formats


                    Angell, C A, Ngai, K L, McKenna, G B, McMillan, P F, and Martin, S W. Relaxation in glassforming liquids and amorphous solids.  United States: N. p., 2000. 
        Web.  doi:10.1063/1.1286035.

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                    Angell, C A, Ngai, K L, McKenna, G B, McMillan, P F, & Martin, S W. Relaxation in glassforming liquids and amorphous solids.  United States.  https://doi.org/10.1063/1.1286035

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                    Angell, C A, Ngai, K L, McKenna, G B, McMillan, P F, and Martin, S W. 2000.  
        "Relaxation in glassforming liquids and amorphous solids".  United States.  https://doi.org/10.1063/1.1286035.

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@article{osti_20217593,

  title        = {Relaxation in glassforming liquids and amorphous solids},

  author       = {Angell, C A and Ngai, K L and McKenna, G B and McMillan, P F and Martin, S W},

  abstractNote = {The field of viscous liquid and glassy solid dynamics is reviewed by a process of posing the key questions that need to be answered, and then providing the best answers available to the authors and their advisors at this time. The subject is divided into four parts, three of them dealing with behavior in different domains of temperature with respect to the glass transition temperature, T{sub g}, and a fourth dealing with ''short time processes.'' The first part tackles the high temperature regime T>T{sub g}, in which the system is ergodic and the evolution of the viscous liquid toward the condition at T{sub g} is in focus. The second part deals with the regime T{approx}T{sub g}, where the system is nonergodic except for very long annealing times, hence has time-dependent properties (aging and annealing). The third part discusses behavior when the system is completely frozen with respect to the primary relaxation process but in which secondary processes, particularly those responsible for ''superionic'' conductivity, and dopart mobility in amorphous silicon, remain active. In the fourth part we focus on the behavior of the system at the crossover between the low frequency vibrational components of the molecular motion and its high frequency relaxational components, paying particular attention to very recent developments in the short time dielectric response and the high Q mechanical response. (c) 2000 American Institute of Physics.},

  doi          = {10.1063/1.1286035},

  url          = {https://www.osti.gov/biblio/20217593},
  journal      = {Journal of Applied Physics},

  issn         = {0021-8979},

  number       = 6,

  volume       = 88,

  place        = {United States},

  year         = {Fri Sep 15 00:00:00 EDT 2000},

  month        = {Fri Sep 15 00:00:00 EDT 2000}

}

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