Behavior and bonding mechanisms of aluminum nanoparticles by electron beam irradiation

Bing She Xu, Shunichiro Tanaka

Research output: Contribution to journalConference articlepeer-review

9 Citations (Scopus)

Abstract

Activities such as migration, rotation and revolution, and the bonding behavior of aluminum nanoparticles by electron irradiation have been investigated using a high-resolution transmission electron microscope on a stage at room temperature. It was determined that the driving force of the migration, rotation and revolution of the Al nanoparticles was a momentum transfer from spirally trajected electrons and ions inside the pole piece of transmission electron microscope. First, adjacent Al nanoparticles came into contact and bonded via necking between the Al/Al grain boundaries and the twin boundaries migrated to the nanoparticle surface. Finally, these boundaries disappeared, giving rise to a single particle or a single crystal. The driving forces for bonding were the surface energy of the nanoparticles and surface activation by momentum transferred from the high-energy electrons and ions. It is also clear that heating induced by electron irradiation is not a major factor controlling Al nanoparticle activities or the bonding process.

Original languageEnglish
Pages (from-to)915-918
Number of pages4
JournalNanostructured Materials
Volume12
Issue number5
DOIs
Publication statusPublished - 1999 Jan 1
Externally publishedYes
EventProceedings of the 1998 4th International Conference on Nanostructured Materials (NANO '98) - Stockholm, Swed
Duration: 1998 Jun 141998 Jun 19

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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