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通过同质化局部病毒应激产生超稳定玻璃
Fabio Leoni1, John Russo1, Francesco Sciortino1
1Sapienza University of Rome, Department of Physics, Piazzale Aldo Moro 5, 00185 Rome, Italy.
Physical review letters
|April 11, 2025
概括
研究人员开发了一种新的算法,通过最小化粒子应力来创建超稳定玻璃 (UG). 这种方法增强了玻璃的稳定性和局部受欢迎的结构,为玻璃状态提供了新的见解.
科学领域:
- 材料科学 材料科学 材料科学
- 凝聚物质物理学 凝聚物质物理学
- 统计力学 统计力学
背景情况:
- 超稳定玻璃 (UG) 的算法准备已经推进了对玻璃状态的理解.
- 以前的UG制备方法在实现最佳稳定性方面存在局限性.
研究的目的:
- 引入一种用于在模型合体玻璃中制备UG的新方案.
- 为了研究微观机械均性对玻璃性能的影响.
主要方法:
- 粒子直径的代修改以减少局部病毒性应力波动.
- 将算法应用于添加的莱纳德-斯混合物.
- 病毒同质化玻璃与通过热获得的状态的比较.
主要成果:
- 与热化状态相比,Virial同质化玻璃具有显著增加的动力稳定性.
- 在 virial 同质化玻璃中观察到局部受欢迎结构数量的增加.
- 这些玻璃的融化发生在加热坡道期间局部事件的积累.
结论:
- 微观机械均性是实现眼镜超稳定性的关键因素.
- 开发的协议为创建高度稳定的玻璃材料提供了一条新的途径.
- 这种方法为理解和工程玻璃系统提供了一个广泛适用的概念.
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