Improvement of elongated alpha-SiAlON ceramics by variation of the processing conditions and amounts of additives

Kurama S., Herrmann M., Mandal H.

EURO CERAMICS VII, PT 1-3, vol.206-2, pp.1009-1012, 2002 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 206-2
  • Publication Date: 2002
  • Doi Number: 10.4028/www.scientific.net/kem.206-213.1009
  • Journal Name: EURO CERAMICS VII, PT 1-3
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED)
  • Page Numbers: pp.1009-1012
  • Keywords: alpha-SiAlON, grain morphology, process conditions, additive content
  • Anadolu University Affiliated: No

Abstract

Two types of Y-alpha -SiAlON composition, with different amounts of additional liquid phase were densified in a gas pressure sintering furnace using three different sintering cycles. One series of samples was heated up to 1825 degreesC for 3 hrs, another group of samples was held at a lower temperature (1500 degreesC or 1600 degreesC) for I hr and then heated up to 1825 degreesC for 3 hrs. The effect of the amounts of sintering additive and processing conditions on density and microstructure were evaluated.