The relation between relaxed enthalpy and volume during physical aging

Katsika-Tsigourakou, Vassiliki; Zardas, G. E.

doi:10.1016/j.jnoncrysol.2009.11.023

Journal of Non-Crystalline Solids

2010

DOI: 10.1016/j.jnoncrysol.2009.11.023

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The relation between relaxed enthalpy and volume during physical aging

Vassiliki Katsika-Tsigourakou

G. E. Zardas

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2012

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A remark on the negative activation volume for defects in solids

Katsika-Tsigourakou

2012

Journal of Non-Crystalline Solids

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The evolution of the aging process of glassy materials quenched from temperatures above their glass transition temperature T g , when plotting the relaxed enthalpy versus the decrease in volume, leads to a slope comparable to the isothermal compressibility close to T g . This empirical result was explained in an earlier publication (V. Katsika-Tsigourakou, G. E. Zardas J. Non-Cryst. Solids 356 (2010) 179-180) by means of a thermodynamical model. Here, we show that the same model enables the explanation of the rare cases of negative defect activation in solids.

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A remark on the negative activation volume for defects in solids

Katsika-Tsigourakou

2012

Journal of Non-Crystalline Solids

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The relation between relaxed enthalpy and volume during physical aging

Cited by 1 publication

References 45 publications

A remark on the negative activation volume for defects in solids

A remark on the negative activation volume for defects in solids

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