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Updated: Jun 17, 2026

$Synthesis and Microdiffraction at Extreme Pressures and Temperatures$

Synthesis and Microdiffraction at Extreme Pressures and Temperatures

Published on: October 7, 2013

在压力玻璃中超越纳米尺度的对称过渡

Zhen Zhang¹, Zhengcheng Xie¹, Walter Kob^1,2

¹Department of Physics, College of Physics, Chengdu University of Technology, Chengdu 610059, China.

Proceedings of the National Academy of Sciences of the United States of America

|November 7, 2025

概括

研究人员在高压下研究了二氧化玻璃,揭示了复杂的中程结构变化. 这些发现解释了二氧化.

科学领域:

材料科学材料科学材料科学
地质物理学地质物理学
计算物理计算物理

背景情况:

是一种关键的玻璃形成网络,对材料科学和地球内部研究至关重要.
已知压力下的的短距离结构变化,但中距离的顺序尚不清楚.

研究的目的:

在高达100 GPa的压力下,对玻璃结构进行数值研究.
了解压力诱导的变换在更大的长度尺度.

主要方法:

玻璃结构的数值模拟.
使用多体相关函数进行分析.

主要成果:

在高压下揭示了复杂的中距离秩序,交替的立方体和八面体对称.
在结构相关长度中确定了两个不同的最大值,解释了异常的压缩性.
证明了粘合,包装和刚性的压力和尺度依赖的相互作用.

结论:

在极端条件下识别的中程顺序是网络玻璃制造商在极端条件下的普遍特征.
了解这种顺序是预测机械性能和融化行为的关键.

关键词:

玻璃玻璃玻璃的玻璃玻璃的玻璃.压力压力压力压力压力石是什么意思? 石是什么意思?模拟器模拟器模拟器模拟器结构结构结构结构

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