Thermophysical properties of Zr65Cu17.5Ni10Al7.5 bulk metallic glass

IF 3.2 3区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Journal of Non-crystalline Solids Pub Date : 2025-01-16 DOI:10.1016/j.jnoncrysol.2025.123400

Ruslan A. Sergiienko , Adit Sharma , Oleksandr A. Shcheretskyi , Vladislav Yu Zadorozhnyy , Volodymyr O. Shcheretskyi , Oleksandr M. Myslyvchenko , Anatolii M. Verkhovliuk , Andrey A. Stepashkin , J.C. Qiao

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引用次数: 0

Abstract

This study investigates the thermophysical properties of Zr₆₅Cu_17.5Ni₁₀Al_7.5 bulk metallic glass during its amorphous-to-crystalline transformation. Differential scanning calorimetry was used to examine the glass transition and crystallization temperatures, enthalpy of crystallization and activation energy. Dynamic mechanical analysis and laser flash analysis were used to determine the storage and loss moduli, thermal diffusivity and thermal conductivity, respectively. Heating-cooling cycles induced structural relaxation and irreversible changes in the amorphous material. Structural relaxation at increasing aging temperatures below glass transition temperature resulted in the increase in the storage modulus and higher loss factor in comparison with the as-cast state. Crystallization led to the formation of intermetallic phases and improved thermal conductivity. Overall, the fully crystalline material exhibited the highest thermal conductivity and diffusivity. Heat treatment at 390 °C for 20 min and at 400 °C for 5 min enhanced plasticity, attributed to shear bands, crystalline phases, and structural relaxation.

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来源期刊

Journal of Non-crystalline Solids 工程技术-材料科学：硅酸盐

CiteScore

6.50

自引率

11.40%

发文量

576

审稿时长

35 days

期刊介绍： The Journal of Non-Crystalline Solids publishes review articles, research papers, and Letters to the Editor on amorphous and glassy materials, including inorganic, organic, polymeric, hybrid and metallic systems. Papers on partially glassy materials, such as glass-ceramics and glass-matrix composites, and papers involving the liquid state are also included in so far as the properties of the liquid are relevant for the formation of the solid. In all cases the papers must demonstrate both novelty and importance to the field, by way of significant advances in understanding or application of non-crystalline solids; in the case of Letters, a compelling case must also be made for expedited handling.