Microstructural evolution R-alpha-SiAlON ceramics (R=Y, Y+Sm and Sm)

Kurama S., Mandal H.

EURO CERAMICS VIII, PTS 1-3, vol.264-268, pp.1103-1106, 2004 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 264-268
  • Publication Date: 2004
  • Doi Number: 10.4028/www.scientific.net/kem.264-268.1103
  • Journal Name: EURO CERAMICS VIII, PTS 1-3
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1103-1106
  • Keywords: nucleation, alpha-SiAlONs, samarium oxide, yittrium oxide
  • Anadolu University Affiliated: No

Abstract

Yttrium or samarium doped alpha-SiAlON composition was sintered using gas pressure sintering through two different sintering procedures. One group of samples was heated up to 1800degreesC and then held for 1 h while another group of samples was held at a 1600degreesC for 1 hr before sintered at 1800degreesC for 1 h. Microstructural characterization of the two stage sintered materials revealed the presence of elongated alpha-SiAlON form related with the type of additive cations.