Fabrication and some properties of textured alumina-related compounds by colloidal processing in high-magnetic field and sintering

Yoshio Sakka, Tohru S. Suzuki, Tetsuo Uchikoshi

Research output: Contribution to journalArticle

49 Citations (Scopus)

Abstract

Recently to improve properties, highly microstructure controlled ceramics such as fine-grained, textured and laminated structures are required. We have demonstrated a new processing of textured ceramics with a feeble magnetic susceptibility by colloidal processing in a high-magnetic field and subsequent heating. As colloidal processing, slip casting and electrophoretic deposition (EPD) have been conducted successfully. Colloidal processing is known to be a powerful method for consolidating fine particles with a high density and homogeneous microstructure. Crystalline-textured controlled laminated alumina can be fabricated using EPD by varying the angle between the vectors of electric field and magnetic field. Also textured ceramics with complicated structure such as β-alumina and alumina-based nanocomposite can be fabricated by reaction sintering. The textured alumina-related compounds showed anisotropic properties depending on the crystal plane. The colloidal processing in a high-magnetic field confers several advantages and can be applied to many non-cubic ceramics.

Original languageEnglish
Pages (from-to)935-942
Number of pages8
JournalJournal of the European Ceramic Society
Volume28
Issue number5
DOIs
Publication statusPublished - 2008 Jan 22
Externally publishedYes

Keywords

  • Alumina
  • EPD
  • Magnetic field
  • Slip casting
  • Textured ceramics

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

Fingerprint Dive into the research topics of 'Fabrication and some properties of textured alumina-related compounds by colloidal processing in high-magnetic field and sintering'. Together they form a unique fingerprint.

  • Cite this