The effect of different nucleation temperatures on the grain morphology of alpha-SiAlON ceramics
SIAIONS, cilt.237, ss.169-173, 2003 (SCI-Expanded)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 237
- Basım Tarihi: 2003
- Doi Numarası: 10.4028/www.scientific.net/kem.237.169
- Dergi Adı: SIAIONS
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED)
- Sayfa Sayıları: ss.169-173
- Anahtar Kelimeler: grain morphology, nucleation temperature, nucleation time, alpha-SiAlON
- Anadolu Üniversitesi Adresli: Hayır
Özet
Nitrogen rich yttrium-cerium containing multi-cation alpha-SiAlON starting compositions were prepared by gas pressure sintering using conventional alpha-Si3N4 powder. Microstructural characterization of the two stage sintered materials resulted in elongated. alpha-SiAlON in various conditions. The effect of different nucleation temperatures at 1400; 1500 and 1600degreesC and times for 5 and 20 minutes on the grain morphology of alpha-SiAlON ceramics were investigated.