Three-Dimensional Analysis of MgB2 Wire by use of X-ray Micro-Tomography

Masayoshi Inoue, Hiroshi Tatara, Kazutaka Harada, Kohei Higashikawa, Shujun Ye, Akiyoshi Matsumoto, Hiroaki Kumakura, Takanobu Kiss

研究成果: ジャーナルへの寄稿記事

1 引用 (Scopus)

抄録

For the further development of MgB2 wires, investigation of 3-D structures for MgB2 filaments and sheath materials is important. However, typical cross-sectional observation such as optical microscopy and scanning electron microscopy are essentially 2-D, therefore, not enough to understand the 3-D filament structures. In this paper, we have adopted X-ray microtomography and carried out a 3-D analysis for MgB2 wire. X-ray microtomography (Skyscan 1172, Bruker) allows us to visualize the internal filament structure of a centimeter-long MgB2 wire with a high spatial resolution of 1.1 μm, with a nondestructive manner. We investigated the boundary between the sheath material and the MgB2 filament of an internal Mg-diffusion-processed MgB2 wire. Furthermore, by improving the signal-to-noise ratio for the X-ray microtomography, we have also identified the boundary between the MgB2 filament and the hole (air) in spite of the low X-ray absorption coefficient for boron and magnesium. From the 3-D analysis, we can reveal the shape and area of MgB2 filament quantitatively and also their statistical distribution.

元の言語英語
記事番号7462215
ジャーナルIEEE Transactions on Applied Superconductivity
26
発行部数3
DOI
出版物ステータス出版済み - 4 1 2016

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dimensional analysis
Tomography
filaments
tomography
wire
Wire
X rays
x rays
sheaths
Boron
X ray absorption
Magnesium
Optical microscopy
Signal to noise ratio
statistical distributions
Scanning
Scanning electron microscopy
magnesium
absorptivity
boron

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

これを引用

Three-Dimensional Analysis of MgB2 Wire by use of X-ray Micro-Tomography. / Inoue, Masayoshi; Tatara, Hiroshi; Harada, Kazutaka; Higashikawa, Kohei; Ye, Shujun; Matsumoto, Akiyoshi; Kumakura, Hiroaki; Kiss, Takanobu.

:: IEEE Transactions on Applied Superconductivity, 巻 26, 番号 3, 7462215, 01.04.2016.

研究成果: ジャーナルへの寄稿記事

Inoue, Masayoshi ; Tatara, Hiroshi ; Harada, Kazutaka ; Higashikawa, Kohei ; Ye, Shujun ; Matsumoto, Akiyoshi ; Kumakura, Hiroaki ; Kiss, Takanobu. / Three-Dimensional Analysis of MgB2 Wire by use of X-ray Micro-Tomography. :: IEEE Transactions on Applied Superconductivity. 2016 ; 巻 26, 番号 3.
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