在高的金属玻璃中持续的多态转换
Yihuan Cao1,2, Ming Yang1, Qing Du1
1Beijing Advanced Innovation Center for Materials Genome Engineering, State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing, China.
Nature communications
|August 7, 2024
概括
高的金属玻璃在加热时表现出连续的多态转变 (CPT),与传统的金属玻璃不同. 这种由高配置驱动的CPT,允许可调节的玻璃结构和特性.
科学领域:
- 材料科学 材料科学 材料科学
- 玻璃科学 玻璃科学
- 凝聚物质物理学 凝聚物质物理学
背景情况:
- 多态转换 (PT) 对于调整玻璃结构和性能至关重要.
- 传统的金属眼镜 (MGs) 通常会显示一级PT.
研究的目的:
- 研究高金属玻璃 (HEMGs) 中多态转换的性质.
- 探索配置在玻璃过渡中的作用.
主要方法:
- 加热HEMG以观察结构演变.
- 分析原子层次的结构变化和化学梯度.
主要成果:
- 在没有第一阶特征的HEMG中观察到连续多态过渡 (CPT).
- CPT的特点是持续的结构演变和不断增加的化学度梯度.
- 高配置抑制了局部有利的结构和化学异质性,限制了原子扩散.
结论:
- 由于高的配置,HEMG经过了CPT,使得可调节的玻璃状态.
- 这一发现为了解玻璃性能和设计新材料提供了新的途径.
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