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Updated: Jul 16, 2026

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses
Published on: June 7, 2018
Development of structural order during supercooling of a fragile oxide melt
L Hennet1, I Pozdnyakova, A Bytchkov
1Centre de Recherche sur les Matériaux à Haute Température, 45071 Orléans Cedex 2, France. hennet@cnrs-orleans.fr
Abstract:
The authors have studied the structural evolution of the fragile glass-forming liquid CaAl2O4 during supercooling from the stable liquid phase to the cold glass below Tg. The evolution is characterized by a sharpening of the first diffraction peak and a shortening of the average nearest-neighbor bond length around 1.25Tg, indicating an increase in the degree of both intermediate-range and short-range orders occurring close to the dynamical crossover temperature. The cooling curve developed a kink at this temperature, indicating a simultaneous change in thermodynamic properties.
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