Amorphous/crystalline transition of copper at room-temperature

M. Fukuhara, H. Abe, H. Nishikawa, T. Takemoto, G. Xie, A. Inoue

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

When a glassy alloy Cu60.6Zr29.4Ti10.0 ribbon was immersed in weak acid HF solution at room-temperature, selective complete leaching out of the Zr and Ti elements occurred, resulting in the formation of a self-organized crystalline copper ribbon with grain size of 32 nm, by accelerated self-diffusion of Cu. Since the glassy alloy is formed by spd hybridization bonding, based on a combination of valence electrons (Eg) that exceeds the electrons (Ec) predicted by crystalline metallic bond theory, disappearance of its extra valence electrons, i.e., ΔE (Eg - Ec = 0.24 eV) for copper, due to leach-out of the Zr and Ti elements, facilitates on crystallization of the copper agglomerate.

Original languageEnglish
Pages (from-to)289-292
Number of pages4
JournalChemical Physics Letters
Volume469
Issue number4-6
DOIs
Publication statusPublished - 2009 Feb 17

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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