|
|||||
|
|
High-energy γ-irradiation effect on physical ageing in Ge–Se glasses |
|
| Authors: | R Golovchak A Kozdras S Kozyukhin O Shpotyuk |
| Affiliation: | a Lviv Scientific Research Institute of Materials of SRC “Carat”, 202 Stryjska Str., Lviv, UA-79031, Ukraine b Department of Physics of Opole University of Technology, 75 Ozimska Str., Opole, PL-45370, Poland c Department of Economy of Academy of Management and Administration in Opole, 18 Niedzialkowski Str., Opole, PL-45085, Poland d Institute of General and Inorganic Chemistry of RAS, Leninsky Pr. 31, Moscow 199991, Russia e Institute of Physics of Jan Dlugosz University, 13/15 al. Armii Krajowej, Czestochowa, PL-42201, Poland |
| Abstract: | Effect of Co60 γ-irradiation on physical ageing in binary GexSe100–x glasses (5  x 27) is studied using conventional differential scanning calorimetry method. It is shown, that high-energy irradiation leads to additional increase in the glass transition temperature and endothermic peak area near the glass transition region over the one induced by isochronal storage of these glasses at normal conditions. This γ-induced physical ageing is shown to be well-pronounced in Se-rich glasses (x < 20), while only negligible changes are recorded for glasses of 20 x 27 compositions. The effect under consideration is supposed to be associated with γ-activated structural relaxation of the glass network towards thermodynamic equilibrium of supercooled liquid. |
| Keywords: | Gamma-irradiation Chalcogenide glass Physical ageing |
| 本文献已被 ScienceDirect 等数据库收录！ | |