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首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >Effect of fragility on relaxation of density fluctuations in glass
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Effect of fragility on relaxation of density fluctuations in glass

机译：脆性对玻璃密度波动松弛的影响

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摘要

Density fluctuations play a crucial role in governing the optical, mechanical, thermodynamic, and kinetic properties of glass. The relaxation of density fluctuations displays an inherently nonmonotonic behavior, yielding a minimum in fluctuations following a quench and isothermal hold. Here we investigate the impact of liquid fragility on the relaxation of density fluctuations in the nonequilibrium glassy state. While fragility has a direct impact on the kinetics of the relaxation process, the minimum level of density fluctuations is unaffected by changes in fragility alone. The magnitude of density fluctuations can be minimized by tailoring the thermal history of the glass.
机译：密度波动在控制玻璃的光学，机械，热力学和动力学特性方面起着至关重要的作用。密度波动的松弛表现出固有的非单调性，在骤冷和等温保持后，波动最小。在这里，我们研究了液体脆性对非平衡玻璃态密度波动松弛的影响。脆性直接影响松弛过程的动力学，而密度波动的最小水平不受脆性变化的影响。可以通过调整玻璃的热历史来最小化密度波动的幅度。

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