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Devitrification behavior and some electrical properties of GeSeTl chalcogenide glass

“…This suggestion was confirmed by ratio T g /T m that decreases with the increase of Se content, since, according to Turnbull [21], the effect of increasing the ratio T g /T m is to decrease the rate of nucleation and leads to the decrease of crystallization rate. This effect has been also observed for previous work of GeSeTl glasses [22][23][24][25]. …”

Microstructure and mechanical properties of a nucleant-free basaltic glass-ceramic

“…The study of crystallisation process taking place in basalt-based glass has considerable interest since the nature and texture of the formed crystalline phases are decisive for the physicomechanical properties of the glass-ceramic materials, and these may be heavily influenced by the thermal treatment conditions [16,17]. Khater et al.…”

Basalt Based Glass Ceramics. Kinetic Studies of the Crystallization Processes

“…The main crystalline phase in basalt-based glass ceramics is the pyroxene solid solution: (Ca,Mg,Fe)SiO 3 [1,[5][6][7]. Some kinetic studies of the crystallization processes in the basalt-based glass ceramics, in which different nucleation agents (TiO 2 , CaF 2 , ZrO 2 ) have been used represented the object of some previous papers [8,9]. The purpose of the present paper is to establish a correlation between the composition of the basalt glass, the proportion and the nature of the nucleation agents, the activation energy of the crystallization processes and the physico-mechanical properties of the obtained glass-ceramics.…”