Texture development of surface-modified SiC prepared by EPD in a strong magnetic field

Tohru S. Suzuki, Tetsuo Uchikoshi, Saki Sakakibara, Hiroyuki Muto, Atsunori Matsuda, Yoshio Sakka

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Silicon carbide is a very important material for various applications and its properties are expected to be improved by controlling the crystallographic orientation. It was difficult to simultaneously consolidate SiC powder and sintering additives by electrophoretic deposition (EPD) because of the different electrophoretic mobility. When using the alumina-coated SiC by the solgel method, it is possible to deposit SiC and sintering additives by EPD at the same time. In this study, we demonstrated that the c-axis alignment of SiC was controlled by EPD and a strong magnetic field, and we investigated the effect of the surface-modification on the microstructure and the degree of orientation. The dilute solution and the large number of repeated coating times prevent the oxide phase from precipitating at the multiple grain junctions and enhance grain growth. The grain growth promoted the degree of orientation in the textured SiC prepared by EPD in a strong magnetic field.

Original languageEnglish
Pages (from-to)667-671
Number of pages5
JournalJournal of the Ceramic Society of Japan
Volume119
Issue number1392
DOIs
Publication statusPublished - 2011 Aug

Keywords

  • C-Axis orientation
  • Grain growth

ASJC Scopus subject areas

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

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