相关实验视频
Updated: Aug 3, 2026
09:51
Atom Probe Tomography Studies on the CuIn,GaSe2 Grain Boundaries
Published on: April 22, 2013
12.9K
通过原子探测器断层扫描揭示了纳米级的富含溶剂的集群在散装金属玻璃中
Keita Nomoto1, Huma Bilal1, Bosong Li2
1Australian Centre for Microscopy & Microanalysis, and School of Aerospace, Mechanical and Mechatronic Engineering, The University of Sydney, Camperdown, 2006, Australia.
Small methods
|August 14, 2025
概括
研究人员开发了一种新的方法来研究散装金属玻璃 (BMGs). 这项技术揭示了纳米级集群如何影响BMG硬度和变形,进步玻璃科学.
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
- 纳米技术纳米技术
背景情况:
- 散装金属玻璃 (BMG) 具有独特的机械性能,归因于它们的无形原子结构.
- 描述BMG的3D纳米结构对于理解结构-属性关系至关重要,但在传统方法中仍然具有挑战性.
研究的目的:
- 开发和应用一种新的原子探头断层扫描 (APT) 集群分析方法,用于在基于Zr的BMG中可视化和量化3D纳米级的富含溶液的集群.
- 阐明这些纳米级集群的特征与BMG的机械特性,特别是硬度和变形机制之间的关系.
主要方法:
- 利用原子探头断层扫描 (APT) 集群分析来识别和描述3D纳米级的富含溶液的集群.
- 量化集群大小,组成,空间分布和体积分数.
- 采用了柔性相软化模型,结合实验确定的集群参数,以分析变形机制.
主要成果:
- 在基于Zr的BMG中成功识别和可视化了3D纳米级的富含溶剂的.
- 证明这些集群的体积分数和分布是BMG硬度变化的主要驱动因素.
- 阐明了富含溶液的集控制了BMG的变形机制,可能与有序的集联系在一起.
结论:
- 开发的APT集群分析在描述金属玻璃中的结构-属性关系方面取得了突破.
- 这种方法使我们能够更深入地了解由纳米尺度特征控制的变形机制.
- 该方法广泛适用于各种多元组合无形材料,有望在玻璃科学中取得重大进展.
相关概念视频
01:08Atomic Force Microscopy
Atomic force microscopy (AFM) is a type of scanning probe microscopy that can analyze topographic details of various specimens like ceramics, glass, polymers, and biological samples. AFM offers over 1000 times more resolution than the optical imaging system. Images generated from AFM are three-dimensional surface profiles, offering an advantage over the flat, two-dimensional images from other imaging techniques.
The AFM Probe
The probe is regarded as the heart of any AFM setup and comprises the...
The AFM Probe
The probe is regarded as the heart of any AFM setup and comprises the...
01:07Electron Microscope Tomography and Single-particle Reconstruction
Transmission electron microscopy (TEM) can be used to determine the 3D structure of biological samples with the help of techniques such as electron microscope tomography and single-particle reconstruction. While single-particle reconstruction can examine macromolecules and macromolecular complexes in vitro conditions only, tomography permits the study of cell components or small cells in vivo.
Electron Tomography
Electron tomography can be performed either in TEM or STEM (scanning transmission...
Electron Tomography
Electron tomography can be performed either in TEM or STEM (scanning transmission...