Local structural evolution of mechanically alloyed Mg50Co 50 using atomic pair distribution function analysis

Hyunjeong Kim, Jin Nakamura, Huaiyu Shao, Yumiko Nakamura, Etsuo Akiba, Karena W. Chapman, Peter J. Chupas, Thomas Proffen

研究成果: Contribution to journalArticle査読

16 被引用数 (Scopus)

抄録

Milling-time-dependent local structural evolution of mechanically alloyed Mg50Co50 was investigated by the atomic pair distribution function analysis using both neutron and synchrotron X-ray powder diffraction data. The initial powder mixture was composed of three phases: hexagonal close-packed (hcp) Mg, hcp Co, and face-centered cubic (fcc) Co. As milling progressed, rather rapid reduction in crystallite sizes of hcp Mg and hcp Co along with the formation of the Mg50Co50 phase was observed. Meanwhile, size reduction in the fcc Co phase was found to be relatively gradual, accompanied by heavy strain. Mg50Co50 forms at the early stage of milling and bears an amorphous nature.

本文言語英語
ページ(範囲)7723-7728
ページ数6
ジャーナルJournal of Physical Chemistry C
115
15
DOI
出版ステータス出版済み - 4 21 2011
外部発表はい

All Science Journal Classification (ASJC) codes

  • 電子材料、光学材料、および磁性材料
  • エネルギー(全般)
  • 物理化学および理論化学
  • 表面、皮膜および薄膜

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