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

被引：33

作者：

Bahsi, Z. B. ^{[1
]}

Aslan, M. H. ^{[2
]}

Ozer, M. ^{[3
]}

Oral, A. Y. ^{[1
]}

机构：

[1] Gebze Inst Technol, Dept Mat Sci & Engn, Kocaeli, Turkey

[2] Gebze Inst Technol, Dept Phys, Kocaeli, Turkey

[3] Istanbul Kultur Univ, Dept Phys, Istanbul, Turkey

来源：

CRYSTAL RESEARCH AND TECHNOLOGY | 2009年 / 44卷 / 09期

关键词：

ZnO; sol-gel; microstructure-final; ceramic; AL-DOPED ZNO; VARISTORS; VOLTAGE;

D O I：

10.1002/crat.200900167

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

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

引用

页码：961 / 966

页数：6

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