Application of orthogonally arranged FIB-SEM for precise microstructure analysis of materials

Toru Hara, Koichi Tsuchiya, Kaneaki Tsuzaki, Xin Man, Tatsuya Asahata, Atsushi Uemoto

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

In order to improve microstructure analysis with electron microscopes, we have developed an instrument that is based on a combination of a scanning electron microscope (SEM) and a focused ion beam (FIB). The most characteristic point is that the SEM and FIB are arranged orthogonally. The advantages of this orthogonal arrangement are that high-resolution and high-contrast SEM images can be obtained because of the uniform background intensity and the short working distance (≈2 mm). Furthermore, since other analytical instruments (such as energy-dispersive spectroscopy (EDS), electron backscatter diffraction (EBSD), scanning transmission electron microscopy (STEM) equipment, etc.) can be located in their ideal positions, multiscale and versatile analyses can be performed with this single instrument. As an example, the observation of the distribution of precipitates in tempered martensitic steels is described. Because of the high contrast achieved by this instrument, different kinds of nanosized precipitates can be distinguished by the contrast in the 3D image reconstructed by the serial-sectioning method, even at low magnifications. Other features of the equipment are also described in this work.

Original languageEnglish
Pages (from-to)S717-S721
JournalJournal of Alloys and Compounds
Volume577
Issue numberSUPPL. 1
DOIs
Publication statusPublished - Nov 15 2013
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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