Sintering behavior of ZnO:Al ceramics fabricated by sol-gel derived nanocrystalline powders

Bahsi Z. B., Aslan M. H., ÖZER M., Oral A. Y.

CRYSTAL RESEARCH AND TECHNOLOGY, cilt.44, sa.9, ss.961-966, 2009 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 44 Sayı: 9
  • Basım Tarihi: 2009
  • Doi Numarası: 10.1002/crat.200900167
  • Dergi Adı: CRYSTAL RESEARCH AND TECHNOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.961-966
  • İstanbul Kültür Üniversitesi Adresli: Evet

Özet

ZnO:Al ceramics (Zn:Al, 0.95:0.05) were prepared by using sol-gel derived nanocrystalline powders. XRD patterns of the doped ceramics revealed the existence of both zincite (JCPDS 36-1451) and gahnite (JCPDS 5-0669) phases. Gahnite phase (ZnAl2O4) was segregated along the ZnO grain boundaries. At the sintering temperature of 1200 degrees C, relative density of the undoped and Al doped ceramics were measured as 0.695 and 0.628, respectively. Both grain size and relative density of the ceramics decreased with Al doping. (C) 2009 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim