MICROSCOPY Vol.45▶No.4 2010
â– Lectures

Local Structure Analysis of Metallic Glasses by HREM and Electron Diffraction

Yoshihiko Hirotsu and Akihiko Hirata

Abstract: Owing to the advancement of electron microscope and the development of its related techniques, nanoscale structural information of amorphous structures has become obtainable by using spherical-aberration-corrected high resolution imaging and nanobeam electron diffraction. In addition, accurate radial distribution function analysis using energy filter has also become available to know averaged amorphous structures. In this lecture, we first explain the effectiveness of these techniques on the comprehensive structure analysis of metallic glasses, followed by introducing applications of these techniques especially to Pd and Fe-based metallic glasses.

Key words: metallic glass, electron diffraction local structure analysis, Cs-corrected HREM, nano-diffraction, electron diffraction radial distribution function analysis