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

Kimitoshi Sato, Mrinalini Mishra, Hiroto Hirano, Tohru S. Suzuki, Yoshio Sakka*

*この研究の対応する著者

研究成果査読

16 被引用数 (Scopus)

抄録

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.

本文言語English
ページ(範囲)817-821
ページ数5
ジャーナルJournal of the Ceramic Society of Japan
122
1429
DOI
出版ステータスPublished - 2014 9 1
外部発表はい

ASJC Scopus subject areas

  • セラミックおよび複合材料
  • 化学 (全般)
  • 凝縮系物理学
  • 材料化学

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