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

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)7723-7728
Number of pages6
JournalJournal of Physical Chemistry C
Volume115
Issue number15
DOIs
Publication statusPublished - Apr 21 2011

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Energy(all)
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films

Fingerprint Dive into the research topics of 'Local structural evolution of mechanically alloyed Mg<sub>50</sub>Co <sub>50</sub> using atomic pair distribution function analysis'. Together they form a unique fingerprint.

  • Cite this

    Kim, H., Nakamura, J., Shao, H., Nakamura, Y., Akiba, E., Chapman, K. W., Chupas, P. J., & Proffen, T. (2011). Local structural evolution of mechanically alloyed Mg50Co 50 using atomic pair distribution function analysis. Journal of Physical Chemistry C, 115(15), 7723-7728. https://doi.org/10.1021/jp111711c