Sr2+-Mg2+-doped SiAlON ceramics

Kurama S., Cigdemir G., Mandal H., Herrmann M.

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, vol.89, no.2, pp.714-716, 2006 (SCI-Expanded) identifier identifier


In the present work, multi-cation-doped (Sr2+-Mg2+) SiAlON ceramics were investigated. MgO and SrO were used in 100:0 and 50:50 molar ratios. The mixture was sintered at 1800 degrees and 1830 degrees C for 1 h in a gas pressure-sintering furnace. The results showed that sintered samples were composed of mainly alpha- and beta-SiAlON phases and small amounts of some Sr-containing phases and SiAlON polytypes. According to Rietveld analysis of X-ray diffraction patterns, Mg is incorporated into the alpha-SiAlON structure. However, the incorporation of Sr is limited.