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Unveiling crystallization and relaxation dynamics interplay in a deeply supercooled glass

Scripta Materialia, ISSN: 1359-6462, Vol: 246, Page: 116085
2024
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Article Description

Crystallization in glasses below their transition range ( Tg ) is crucial for understanding material stability and performance. However, data on the time evolution of crystallized fractions in this temperature range is scarce. This study investigates the interplay between structural relaxation and crystallization kinetics in a model silicate glass (5BaO·8SiO 2 ) below Tg. Analyzing the number of crystals, their size, and the crystallized volume as a function of the treatment time, we demonstrate that a single parameter accounting for structural relaxation effectively describes these three crystallization processes. Notably, we found that glasses prone to rapid crystallization below Tg can fully crystallize before reaching complete structural relaxation. These findings highlight the complex interplay between relaxation dynamics and crystallization in deeply supercooled glasses, with implications for understanding and controlling these processes in various materials.

Bibliographic Details

Lorena R. Rodrigues; Alexander S. Abyzov; Vladimir M. Fokin; María H.R. Acosta; Marcio L.F. Nascimento; Leonid N. Davydov; Edgar D. Zanotto

Elsevier BV

Materials Science; Physics and Astronomy; Engineering

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