Maxwell relaxation time for nonexponential α-relaxation phenomena in glassy systems

Karan Doss; Collin J. Wilkinson; Yongjian Yang; Kuo Hao Lee; Liping Huang; John C. Mauro

doi:10.1111/jace.17051

Maxwell relaxation time for nonexponential α-relaxation phenomena in glassy systems

Karan Doss, Collin J. Wilkinson, Yongjian Yang, Kuo Hao Lee, Liping Huang, John C. Mauro

Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

24 Scopus citations

Abstract

We examine the mean relaxation time predicted by the Maxwell relation for stress and structural α-relaxation phenomena. We express this relation using the Markov network framework and present an expression for the average relaxation time under equilibrium and nonequilibrium conditions that is rooted in the energy landscape of a material. We show that structural relaxation times calculated using the Maxwell relation must systematically underpredict the relaxation time. Finally, we report experimental evidence suggesting that the relaxation time obtained from shear viscosity measurements must correspond to a stress relaxation time.

Original language	English (US)
Pages (from-to)	3590-3599
Number of pages	10
Journal	Journal of the American Ceramic Society
Volume	103
Issue number	6
DOIs	https://doi.org/10.1111/jace.17051
State	Published - Jun 1 2020

All Science Journal Classification (ASJC) codes

Ceramics and Composites
Materials Chemistry

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10.1111/jace.17051

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title = "Maxwell relaxation time for nonexponential α-relaxation phenomena in glassy systems",

abstract = "We examine the mean relaxation time predicted by the Maxwell relation for stress and structural α-relaxation phenomena. We express this relation using the Markov network framework and present an expression for the average relaxation time under equilibrium and nonequilibrium conditions that is rooted in the energy landscape of a material. We show that structural relaxation times calculated using the Maxwell relation must systematically underpredict the relaxation time. Finally, we report experimental evidence suggesting that the relaxation time obtained from shear viscosity measurements must correspond to a stress relaxation time.",

author = "Karan Doss and Wilkinson, {Collin J.} and Yongjian Yang and Lee, {Kuo Hao} and Liping Huang and Mauro, {John C.}",

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AU - Doss, Karan

AU - Wilkinson, Collin J.

AU - Yang, Yongjian

AU - Lee, Kuo Hao

AU - Huang, Liping

AU - Mauro, John C.

PY - 2020/6/1

Y1 - 2020/6/1

N2 - We examine the mean relaxation time predicted by the Maxwell relation for stress and structural α-relaxation phenomena. We express this relation using the Markov network framework and present an expression for the average relaxation time under equilibrium and nonequilibrium conditions that is rooted in the energy landscape of a material. We show that structural relaxation times calculated using the Maxwell relation must systematically underpredict the relaxation time. Finally, we report experimental evidence suggesting that the relaxation time obtained from shear viscosity measurements must correspond to a stress relaxation time.

AB - We examine the mean relaxation time predicted by the Maxwell relation for stress and structural α-relaxation phenomena. We express this relation using the Markov network framework and present an expression for the average relaxation time under equilibrium and nonequilibrium conditions that is rooted in the energy landscape of a material. We show that structural relaxation times calculated using the Maxwell relation must systematically underpredict the relaxation time. Finally, we report experimental evidence suggesting that the relaxation time obtained from shear viscosity measurements must correspond to a stress relaxation time.

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EP - 3599

JO - Journal of the American Ceramic Society

JF - Journal of the American Ceramic Society

IS - 6

ER -

Maxwell relaxation time for nonexponential α-relaxation phenomena in glassy systems

Abstract

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