相关实验视频
Updated: May 1, 2026

04:36
Production of Synthetic Nuclear Melt Glass
Published on: January 4, 2016
8.9K
一个单原子金属液体的玻璃化
M H Bhat1, V Molinero, E Soignard
1Department of Chemistry and Biochemistry, Arizona State University, Tempe, Arizona 85287-1604, USA.
Nature
|August 19, 2007
概括
研究人员通过控制液体冷却速度,成功地从单一元素 - - 中制造出金属玻璃. 这种金属玻璃形成的突破挑战了以前的多元组件要求,并为玻璃化过程提供了新的见解.
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
- 物理化学 物理化学
背景情况:
- 玻璃通常是复杂的混合物,但纯粹的物质也可以形成玻璃.
- 大量金属玻璃通常需要多个组件来防止结晶.
- 单元金属系统的玻璃化具有挑战性,很少实现.
研究的目的:
- 为了实现单元金属系统的玻璃化,特别是液体.
- 研究影响金属液体中缓慢晶核化速率的因素.
- 探索金属玻璃形成中的多态转换的潜力.
主要方法:
- 利用分子动力学模拟的见解来指导实验条件.
- 对金属液体应用了受控的冷却速率.
- 采用微图分析来观察由此产生的结构和转变.
主要成果:
- 成功玻璃化金属液体日耳曼,创建一个单元金属玻璃.
- 证明控制式冷却可以在某些纯金属系统中克服结晶.
- 观察到的微图证据表明结晶之前的多态转变.
结论:
- 在特定条件下,单元金属系统的玻璃化是可以实现的.
- 这项研究提供了一种新方法,用纯元素制造金属玻璃.
- 这些发现有助于进一步了解材料中的玻璃形成机制和多态性.
更多相关视频
08:55Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses
Published on: June 7, 2018
8.2K
06:48Fluid-cell Raman Spectroscopy for operando Studies of Reaction and Transport Phenomena during Silicate Glass Corrosion
Published on: May 9, 2025
1.3K
相关概念视频
Bonding in Metals
45.5K
Metallic bonds are formed between two metal atoms. A simplified model to describe metallic bonding has been developed by Paul Drüde called the “Electron Sea Model”.
45.5K
Metallic Solids
16.4K
Metallic solids such as crystals of copper, aluminum, and iron are formed by metal atoms. The structure of metallic crystals is often described as a uniform distribution of atomic nuclei within a “sea” of delocalized electrons. The atoms within such a metallic solid are held together by a unique force known as metallic bonding that gives rise to many useful and varied bulk properties.
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and...
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and...
16.4K
Liquid–Solid Solutions
122
The process of a solid dissolving in a liquid to form a solution is governed by the solubility limit, which is the maximum amount of the solid substance, or solute, that can be dissolved in a specific volume of the liquid or solvent. As the solute dissolves, it reaches a point where no more solute can be dissolved at a given temperature - this is known as the saturation point. However, if further solute is added and it manages to dissolve, the solution becomes supersaturated. Supersaturated...
122