Investigation of particle segregation in a metal hydride packed bed by extracting particle size distribution from a three-dimensional image

Masahiko Okumura, Yasuhiro Saito, Yohsuke Matsushita, Hideyuki Aoki, Yoshiaki Kawakami, Katsuhiko Taki

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Particle size distribution in a metal hydride packed bed was acquired from three-dimensional X-ray computed tomographic images, using an image recognition method to quantitatively evaluate particle size segregation in the bed. The image recognition method was constructed by combining the original seed-generating method with other methods (e.g., the watershed method). The image recognition method was first applied to glass bead packed beds. The results indicated that the method adequately estimated the particle size distribution of the packed bed from three-dimensional images. After this validation, the method was applied to metal hydride packed beds. The results corresponded with observation results obtained by previous study. These results confirm that the image acquisition method could be used to quantify particle size segregation.

Original languageEnglish
Pages (from-to)16-22
Number of pages7
JournalNippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
Volume79
Issue number1
DOIs
Publication statusPublished - 2015 Jan 1

Keywords

  • Computed tomography
  • Metal hydride
  • Packed bed
  • Pulverization
  • Segregation

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys
  • Materials Chemistry

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