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Microstructure development and nonlinear electrical characteristics of the SnO2·CuO·Ta2O5 based varistors

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Abstract

The microstructure development of SnO2·CuO based ceramic material was analyzed by XRD and SEM and the electrical properties were investigated by J-E relation. The secondary phases of copper oxide were found by the XRD. Copper oxide could make tin oxide densify and advance the grain growth, while tantalum oxide would retard the grain growth. Excess copper would centralize at the grain boundaries and prevent the mass transport. The high nonlinear coefficient (α = 27.3) and low leakage current density (JL = 16 μA cm−2) for the 0.05 mol% Ta2O5-doped SnO2·CuO based varistor sample were obtained. The modified defect barrier model for CuO and Ta2O5-doped SnO2 based varistors was introduced.

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References

  1. S. A. PIANARO, P. R. BUENO, E. LONGO and J. A. VARELA, J. Mater. Sci. Lett. 14 (1995) 692.

    Article  CAS  Google Scholar 

  2. Y. J. WANG, J. F. WANG, C. P. LI, H. C. CHEN, W. B. SU, W. L. ZHONG, P. L. ZHANG and L. Y. ZHAO, ibid. 20 (2001) 19.

    Google Scholar 

  3. J. F. WANG, Y. J. WANG, W. B. SU, H. C. CHEN and W. X. WANG, Mat. Sci. Eng. B 96 (2002) 8.

    Google Scholar 

  4. C. P. LI, J. F. WANG, W. B. SU, H. C. CHEN, W. X. WANG, D. X. ZHUANG and L. XU, Eur. Phys. J. Appl. Phys. 16 (2001) 3.

    CAS  Google Scholar 

  5. J. F. WANG, H. C. CHEN, W. X. WANG, W. B. SU and G. Z. ZANG, Mat. Sci. Eng. B 99 (2003) 465.

    Google Scholar 

  6. A. C. ANTUNES, S. R. M. ANTUNES, S. A. PIANARO, M. R. ROCHA, E. LONGO and J. A. VARELA, J. Mater. Sci. Lett. 17 (1998) 577.

    Article  CAS  Google Scholar 

  7. C. M. WANG, J. F. WANG, H. C. CHEN, W. X. WANG, W. B. SU, G. Z. ZANG and P. QI, J. Phys. D: Appl. Phys. 36 (2003) 3069.

    CAS  Google Scholar 

  8. C. M. WANG, J. F. WANG, H. C. CHEN, W. B. SU, G. Z. ZANG, P. QI and B. Q. MING, Solid State Commun. 132 (2004) 163.

    CAS  Google Scholar 

  9. D. NISIRO, G. FABBRI, G. C. CELOTTI and A. BELLOSI, J. Mater. Sci. 38 (2003) 2727.

    Article  CAS  Google Scholar 

  10. F. STUCKI and F. GREUTER, Appl. Phys. Lett. 57 (1990) 446.

    Article  CAS  Google Scholar 

  11. P. R. BUENO, E. R. BEITE, M. M. OLIVEIRA, M. O. ORLANDI and E. LONGO, ibid. 79 (2001) 48.

    Article  CAS  Google Scholar 

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Authors and Affiliations

  1. School of Physics and Microelectronics, National Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, People's Republic of China

    Chun-Ming Wang, Jin-Feng Wang, Wen-Bin Su, Hong-Cun Chen, Guo-Zhong Zang & Peng Qi

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  1. Chun-Ming Wang
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  2. Jin-Feng Wang
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  3. Wen-Bin Su
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  4. Hong-Cun Chen
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  5. Guo-Zhong Zang
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  6. Peng Qi
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Correspondence to Chun-Ming Wang.

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Wang, CM., Wang, JF., Su, WB. et al. Microstructure development and nonlinear electrical characteristics of the SnO2·CuO·Ta2O5 based varistors. J Mater Sci 40, 6459–6462 (2005). https://doi.org/10.1007/s10853-005-1709-1

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  • DOI: https://doi.org/10.1007/s10853-005-1709-1

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