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Preparation and Electrical-Conductive Property of SnO2-Based Ceramics with 0.5% CuO and Sb2O3

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Abstract:

In this study, SnO2-based ceramics, with 0.5%CuO as sintering aid and Sb2O3 as activator of the electrical conductivity, was obtained by pressureless sintering at 1450°C for 5 h. Densification behavior and microstructure development strongly depend on Sb2O3. The characteristization of microstructures on Sb2O3 concentrations are analyzed by SEM. A small amount of CuO improves densification; Sb2O3 retards the densification of SnO2-based ceramic. The electrical resistivities of SnO2-based ceramics with different contents of Sb2O3 are measured by the standard four probe method and varied in a wide range. The electrical resistivity arrives the minimal value of 4.964×10-2 0·cm for 99%SnO2+0.5%CuO +0.5%Sb2O3. More content of Sb2O3 than that of CuO causes the degression of density and the increasing of electrical resistivity of ceramics.

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Periodical:

Key Engineering Materials (Volume 352)

Pages:

263-266

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.352.263

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Online since:

August 2007

Authors:

Lian Meng Zhang, Guo Qiang Luo, J. Li, Dong Ming Zhang, Qiang Shen

Keywords:

Antimony(III) Oxide, Copper (II) Oxide, Electrical Resistivity, SnO2 Based Ceramics

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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