Spark plasma sintering of antimony-doped tin oxide (ATO) nanoceramics with high density and enhanced electrical conductivity

被引：11
|
作者：
Zhang, Lianmeng [1 ]
Wu, Junyan [1 ]
Chen, Fei [1 ,2 ]
Li, Xueping [1 ]
Schoenung, M. [3 ]
Shen, Qiang [1 ]
机构：
[1] Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China
[2] Wuhan Univ Technol, Minist Educ, Key Lab Adv Technol Specially Funct Mat, Wuhan 430070, Peoples R China
[3] Univ Calif Davis, Dept Chem Engn & Mat, Davis, CA 95616 USA
来源：
JOURNAL OF ASIAN CERAMIC SOCIETIES | 2013年 / 1卷 / 01期
基金：
对外科技合作项目（国际科技项目）;
关键词：
Ceramics; Sintering; Grain boundaries; Grain growth; Electrical conductivity; Nanoparticles;
D O I：
10.1016/j.jascer.2013.03.010
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：
Antimony-doped tin oxide (ATO) nanoceramics used for sputtering targets are successfully prepared by spark plasma sintering (SPS) technology using commercial ATO nanoparticles with particle size of 10-15 nm. The effect of sintering temperature on the microstructure and electrical property of the obtained ATO nanoceramics is investigated. By means of XPS, the Sb5+/Sb3+ ratio of ATO nanoceramics sintered at different temperatures is determined. The results suggest that when the sintering temperature is 1000. C, ATO nanoceramics show a density of 97.2% and electrical resistivity of 7.9 x 10(-2) Omega cm which attribute to an elevated Sb5(+)/Sb3+ ratio. The main mechanism of conduction is explained through the carrier concentration determined on the antimony content and its oxidation state in the tin oxide lattice. (C)2013he Ceramic Society of Japan and the Korean Ceramic Society. Production and hosting by Elsevier B.V. All rights reserved.
引用
收藏
页码：114 / 119
页数：6
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