Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9778059 | Journal of Non-Crystalline Solids | 2005 | 7 Pages |
Abstract
Thermal expansion and volume changes due to structural relaxation during heat treatment in glassy alloys were studied in situ using Synchrotron X-ray radiation diffractometry. A glass transition phenomenon was also detected. Synchrotron X-ray radiation diffractometry was successfully used for studying dilatation, glass transition and volume change phenomena detecting excess free volume and in glassy alloys. Good correspondence of the thermal expansion coefficients was obtained independently by thermo-mechanical length change measurements and Synchrotron X-ray radiation diffractometry as well as the glass transition temperature obtained by DSC and Synchrotron X-ray radiation diffractometry. The reduced average free volume change is smaller in the alloy consisting of the glassy matrix containing the nanocrystalline phase compared to the fully glassy alloy.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Dmitri V. Louzguine, Alain Reza Yavari, Katsumi Ota, Gavin Vaughan, Akihisa Inoue,