A remark on the negative activation volume for defects in solids
Materials Science
2017-04-27 v1
Abstract
The evolution of the aging process of glassy materials quenched from temperatures above their glass transition temperature , when plotting the relaxed enthalpy versus the decrease in volume, leads to a slope comparable to the isothermal compressibility close to . 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.
Cite
@article{arxiv.1704.08044,
title = {A remark on the negative activation volume for defects in solids},
author = {Vassiliki Katsika-Tsigourakou},
journal= {arXiv preprint arXiv:1704.08044},
year = {2017}
}
Comments
9 pages, 1 table