Two-Step Sintering of Pristine and Aluminum-Doped Zinc Oxide Ceramics

被引：15
|
作者：
Zhang, Yulong [1 ]
Yang, Ye [1 ]
Zhang, Xianpeng [1 ]
Wang, Weiyan [1 ]
Cui, Ping [1 ]
Song, Weijie [1 ]
Tan, Ruiqin [2 ]
机构：
[1] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Zhejiang, Peoples R China
[2] Ningbo Univ, Sch Informat Sci & Engn, Ningbo 315211, Zhejiang, Peoples R China
来源：
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY | 2012年 / 9卷 / 05期
基金：
美国国家科学基金会; 浙江省自然科学基金;
关键词：
CONSTANT GRAIN-SIZE; NANOCRYSTALLINE ZNO; GROWTH; DENSIFICATION; TEMPERATURE; BEHAVIOR; DENSE; MICROSTRUCTURE; DIFFUSION; VARISTOR;
D O I：
10.1111/j.1744-7402.2011.02702.x
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
ZnO and Al-doped ZnO ceramics with high density and fine grain size were prepared using a two-step sintering method. ZnO ceramics with a grain size of 1.2 mu m and a density greater than 99% were obtained. The kinetic window for a ZnO nanoparticle TSS process was determined in this study. Dense AZO ceramics with homogeneous Al distribution were obtained using a high sintering temperature (Tst) of 1323K and a low sintering temperature (Tnd) of 1273K. The activation energies for ZnO and AZO nanoparticle grain growth were determined to be 169 +/- 18kJ/mol and 374 +/- 36kJ/mol, respectively.
引用
收藏
页码：960 / 967
页数：8
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