Sintering behavior of ZnO:Al ceramics fabricated by sol-gel derived nanocrystalline powders
| Autor: | Zehra Banu Bahşi, Mehmet Özer, Ahmet Yavuz Oral, Muhammed Hasan Aslan |
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| Přispěvatelé: | TR54063, TR50180, TR2509, TR118258 |
| Rok vydání: | 2009 |
| Předmět: |
Materials science
ceramic Zincite Sintering seramik sol-gel Relative density General Materials Science Ceramic Sol-gel microstructure-final Metallurgy varistors General Chemistry Condensed Matter Physics Grain size Nanocrystalline material al-doped zno voltaj Chemical engineering visual_art voltage ZnO visual_art.visual_art_medium mikroyapı final varistörler Grain boundary |
| Zdroj: | Crystal Research and Technology. 44:961-966 |
| ISSN: | 1521-4079 0232-1300 |
| Popis: | 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 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 |
| Databáze: | OpenAIRE |
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