Fabrication of textured Ti3SiC2ceramic by slip casting in a strong magnetic field and pressureless sintering

Kimitoshi Sato, Mrinalini Mishra, Hiroto Hirano, Tohru Suzuki, Yoshio Sakka

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Sinterable Ti3SiC2powder was synthesized from a powder mixture with a molar ratio of 1.0Ti:0.3Al:1.2Si:2.0TiC by heating at 1200°C in Ar flow. Almost single-phase peaks of Ti3SiC2were observed in X-ray diffraction patterns. The powder was dispersed in ethanol using polyethylenimine (PEI) as the polymer dispersant. Textured dense Ti3SiC2ceramics were successfully fabricated by slip casting in a strong magnetic field followed by pressureless sintering at 1400°C for 2h. The relative density of these Ti3SiC2ceramics was 99.4%, and the bending strength, fracture toughness and electrical resistivity were 623 ± 9MPa, 5.9 ± 0.1 MPa·m1/2and 0.31 μΩ·m, respectively. Compared with those of nontextured pressureless sintered samples of almost full density, the bending strength and fracture toughness of the textured Ti3SiC2ceramics were increased by factors of 1.6 and 1.4, respectively.

Original languageEnglish
Pages (from-to)817-821
Number of pages5
JournalJournal of the Ceramic Society of Japan
Volume122
Issue number1429
DOIs
Publication statusPublished - 2014 Sep 1
Externally publishedYes

    Fingerprint

Keywords

  • Magnetic field
  • MAX phase
  • Pressureless sintering
  • Slip casting
  • Texture
  • TiSiC

ASJC Scopus subject areas

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

Cite this