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相关概念视频

Metallic Solids02:37

Metallic Solids

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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...
18.1K

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相关实验视频

Updated: May 16, 2025

Spatial Separation of Molecular Conformers and Clusters
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包装金属原子集群通过集束束过程提供通用和坚固的保护.

Siqi Lu1,2,3, Zixiang Zhao1,2,3, Jinsen Han4,5,6,7

  • 1National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, and School of Physics, Nanjing University, Nanjing, 210093, P. R. China.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|April 3, 2025
PubMed
概括

研究人员开发了一种新的方法,通过将它们植入聚甲基甲酸 (PMMA) 中来保护微妙的气相金属集群. 这种技术为各种集群提供了强大的和通用的保护,使得进一步的研究和应用成为可能.

关键词:
聚合物抗性 聚合物抗性集束光束植入装置的集束光束植入装置.氧化阻力 氧化阻力 氧化阻力聚合物包装的聚合物包装.普遍的保护是普遍的保护.

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相关实验视频

Last Updated: May 16, 2025

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Processing of Bulk Nanocrystalline Metals at the US Army Research Laboratory
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科学领域:

  • 材料科学 材料科学 材料科学
  • 纳米技术纳米技术
  • 表面化学 表面化学

背景情况:

  • 气相金属集群是材料的关键构件,但在真空转移时容易受损.
  • 需要有效的保护策略来保护这些微妙的纳米结构的完整性.

研究的目的:

  • 提出一种新的集群包装和保护策略,使用可控制束植入聚甲基酸 (PMMA) 中.
  • 在软着陆条件下实现原子精确集群的非破坏性包装.

主要方法:

  • 气相金属集群的尺寸选择.
  • 可控制的集束束束植入聚甲基甲酸 (PMMA).
  • 在集群植入过程中,PMMA的协同加热.

主要成果:

  • 在PMMA中实现了尺寸选择的气相集群的非破坏性包装.
  • 对氧化 (Mo集群在空气中长达30天) 和聚合 (高达100°C或在液体中) 证明了强大的保护.
  • 展示了各种集群的通用保护,包括各种尺寸的Mo,Ta,Cu,W和 (Re-Mo) 合金.

结论:

  • 开发的PMMA植入方法为气相金属集群提供了稳定有效的保护.
  • 保护机制涉及微弱的PMMA集群结合和直接植入固体矩阵.
  • 这一战略有助于未来对受保护的气相金属集群的研究和应用.