Structural characterization of Cu-Ti-based bulk metallic glass by advanced electron microscopy

M. Ishimaru, Y. Hirotsu, S. Hata, C. Ma, N. Nishiyama, K. Amiya, A. Inoue

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

The atomistic structure of a high-strength Cu42.5Ti41.5Ni7.5Zr2.5Hf5Si1 bulk metallic glass prepared by copper-mould casting has been characterized by transmission electron microscopy (TEM) and scanning transmission electron microscopy (STEM). High-resolution TEM and high-angle annular dark-field observations revealed that crystalline nanoparticles with sizes less than 10?nm are embedded in an amorphous matrix. It was confirmed by energy-dispersive X-ray spectroscopy in combination with STEM that these nanoparticles possess higher copper content than the amorphous matrix. Nanobeam electron diffraction experiments indicated that their crystalline structure is basically face-centred cubic with ordered atomic arrangements.

Original languageEnglish
Pages (from-to)125-133
Number of pages9
JournalPhilosophical Magazine Letters
Volume85
Issue number3
DOIs
Publication statusPublished - Mar 2005

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

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