Preparation of textured B 4 C compact with oriented pore-forming agent by slip casting under strong magnetic field

Shota Azuma, Tetsuo Uchikoshi, Katsumi Yoshida, Tohru Suzuki

Research output: Contribution to journalArticle

Abstract

Control rods are one of the structural components in a nuclear reactor and are required to have a high functionality and reliability to provide a safe nuclear reactor. Random-oriented boron carbide (B 4 C) is normally used as the control rods, but cracks are easily generated during the nuclear reaction because of volume swelling due to the accumulation of helium gas and nonhomogeneous thermal stress distribution during the neutron absorption reaction. In this study, we were able to control the crystalline orientation of the B 4 C and align the tubal pores for controlling the thermal stress distribution and releasing the helium gas by controlling the dispersion of particles in a slurry and the rotation in a magnetic field.

Original languageEnglish
Pages (from-to)832-838
Number of pages7
JournalJournal of the Ceramic Society of Japan
Volume126
Issue number10
DOIs
Publication statusPublished - 2018 Oct 1
Externally publishedYes

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Keywords

  • Binary slurry
  • Highly controlled structure
  • Magnetic field alignment
  • Slip casting
  • Textured B4C

ASJC Scopus subject areas

  • Ceramics and Composites
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

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