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Three-Dimensional Microscopic Elemental Analysis Using an Automated High-Precision Serial Sectioning System

Published online by Cambridge University Press:  02 March 2011

Kazuhiro Fujisaki ,
Hideo Yokota ,
Naomichi Furushiro ,
Shintaro Komatani ,
Sumito Ohzawa ,
Yoshimichi Sato ,
Daisuke Matsunaga ,
Ryutaro Himeno ,
Toshiro Higuchi  and
Akitake Makinouchi
Kazuhiro Fujisaki
Affiliation:
Division of Human Mechanical Systems and Design, Graduate School of Engineering, Hokkaido University, N13 W8, Kita-ku, Sapporo 060-8628, Japan Bio-Research Infrastructure Construction Team, RIKEN, 2-1, Hirosawa, Wako, Saitama 351-0198, Japan
Hideo Yokota*
Affiliation:
Division of Human Mechanical Systems and Design, Graduate School of Engineering, Hokkaido University, N13 W8, Kita-ku, Sapporo 060-8628, Japan Bio-Research Infrastructure Construction Team, RIKEN, 2-1, Hirosawa, Wako, Saitama 351-0198, Japan Biomechanical Simulation Research Team, RIKEN, Wako, Saitama 351-0198, Japan
Naomichi Furushiro
Affiliation:
Bio-Research Infrastructure Construction Team, RIKEN, 2-1, Hirosawa, Wako, Saitama 351-0198, Japan Department of Mechanical Engineering, Faculty of Engineering Science, Kansai University, 3-3-35, Yamate-cho, Suita, Osaka 564-8680, Japan
Shintaro Komatani
Affiliation:
Horiba, Ltd., 2, Miyanohigashi, Kisshoin, Minami-ku, Kyoto 601-8510, Japan
Sumito Ohzawa
Affiliation:
Horiba, Ltd., 2, Miyanohigashi, Kisshoin, Minami-ku, Kyoto 601-8510, Japan
Yoshimichi Sato
Affiliation:
Horiba, Ltd., 2, Miyanohigashi, Kisshoin, Minami-ku, Kyoto 601-8510, Japan
Daisuke Matsunaga
Affiliation:
Horiba, Ltd., 2, Miyanohigashi, Kisshoin, Minami-ku, Kyoto 601-8510, Japan
Ryutaro Himeno
Affiliation:
Biomechanical Simulation Research Team, RIKEN, Wako, Saitama 351-0198, Japan
Toshiro Higuchi
Affiliation:
Biomechanical Simulation Research Team, RIKEN, Wako, Saitama 351-0198, Japan Department of Precision Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
Akitake Makinouchi
Affiliation:
Division of Human Mechanical Systems and Design, Graduate School of Engineering, Hokkaido University, N13 W8, Kita-ku, Sapporo 060-8628, Japan VCAD System Research Program, RIKEN, 2-1, Hirosawa, Wako, Saitama 351-0198, Japan
*
Corresponding author. E-mail: hyokota@riken.jp
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Abstract

The elemental composition and microscopic-level shape of inclusions inside industrial materials are considered important factors in fracture analytical studies. In this work, a three-dimensional (3D) microscopic elemental analysis system based on a serial sectioning technique was developed to observe the internal structure of such materials. This 3D elemental mapping system included an X-ray fluorescence analyzer and a high-precision milling machine. Control signals for the X-ray observation process were automatically sent from a data I/O system synchronized with the precision positioning on the milling machine. Composite specimens were used to confirm the resolution and the accuracy of 3D models generated from this system. Each of the two specimens was composed of three metal wires of 0.5 mm diameter braided into a single twisted wire that was placed inside a metal pipe; the pipe was then filled with either epoxy resin or Sn. The milling machine was used to create a mirror-finish cross-sectional surface on these specimens, and elemental analyses were performed. The twisted wire structure was clearly observed in the resulting 3D models. This system enables automated investigation of the 3D internal structure of materials as well as the identification of their elemental components.

Keywords

serial sectioningelemental mappingmicroscopic structureprecision cuttingthree-dimensional modelinternal structureautomation
Type
Material Applications
Information
Microscopy and Microanalysis , Volume 17 , Issue 2 , April 2011 , pp. 246 - 251
Copyright
Copyright © Microscopy Society of America 2011

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