Mg+2 and Ce+3 doped alpha-SiAlON ceramics

Kurama S., Mandal H.

EURO CERAMICS VIII, PTS 1-3, vol.264-268, pp.1111-1114, 2004 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 264-268
  • Publication Date: 2004
  • Doi Number: 10.4028/www.scientific.net/kem.264-268.1111
  • Journal Name: EURO CERAMICS VIII, PTS 1-3
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED)
  • Page Numbers: pp.1111-1114
  • Keywords: magnesium, cerium, alpha-SiAlON, multi cation, processing, microstructure, CA
  • Anadolu University Affiliated: No

Abstract

In the present work, stabilization of MgO and CeO2 in alpha-SiAlON structure is studied. Mg and CeO2 were used in 50:50 molar ratios as additives. The mixture was sintered at 1830degreesC for 1 hour in gas pressure sintering furnace (GPS). The results show that sintered sample was composed of alpha-SiAlON and beta-SiAlON phases. According to X-ray diffraction (XRD) and energy dispersive X-ray measurements (EDX) analyses, Mg and Ce cation could be incorporated into alpha-SiAlON structure higher than single R cation (R=Mg or Ce) doped compositions.