✦ LIBER ✦
Sintering behavior of ZnO:Al ceramics fabricated by sol-gel derived nanocrystalline powders
✍ Scribed by Z. B. Bahşi; M. H. Aslan; M. Ozer; A. Y. Oral
- Publisher
- John Wiley and Sons
- Year
- 2009
- Tongue
- English
- Weight
- 390 KB
- Volume
- 44
- Category
- Article
- ISSN
- 0232-1300
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✦ Synopsis
Abstract
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 (ZnAl~2~O~4~) was segregated along the ZnO grain boundaries. At the sintering temperature of 1200 °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. (© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)