Study on the Second Phases of (Y,Nb)-Codoped TiO₂ Ceramic

Abstract:

Microstructures and crystal structures of the second phases YNbO₄ and YTiNbO₆ in (Y,Nb)-codoped TiO₂ ceramics were investigated at different sintering temperature and calcination temperature. The (Y,Nb)-codoped TiO₂ ceramics and the second phase ceramic samples were prepared by the traditional electronic ceramic process. The microstructure, chemical composition and crystal structures of samples were characterized by SEM, EDS and XRD. The results show that there exist second phases of YNbO₄ and YTiNbO₆ in (Y,Nb)-codoped TiO₂ ceramic. With the sintering temperature and calcination temperature rising, the second phase YNbO₄ will transmit to YTiNbO₆.

• Periodical: Advanced Materials Research (Volume 833)
• Pages: 88-92
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.833.88
• Online since: November 2013
• Authors: Er Xin Ni, Wan Xia Tang, Song Lin Zhang, Ji Kang Yan, Guo You Gan, Gang Yang, Zhe Shi, Jian Hong Yi
• Keywords: Codoped, Second Phases, TiO₂ Ceramic

References

[1] H.M. Ji, Q. C Sun, D. Y . Wang. Study on the performance of Y doped TiO2 Pressure sensitive ceramic, J. Silicate reported. 5 (2002)58-60.

[2] J. Mi, Z.T. Zhang, Z. L . Tang. Influence of rare earth elements (Y, La, Ce) on Structure and properties of influence of Nb doping TiO2 sensitive ceramics, J. The 12th voltage sensitive technology branch of China electronic institute special academic conference paper. 12(2011).

[3] J.K. Yan, G.Y. Gan, J.H. Du, J.L. Sun. Second Phases of (La, Nb)-Codoped TiO2 Varistor Ceramic, J. Piezoelectrics and Acoustooptics . 5(2011)779-783.

[4] H.F. Chen, G.Y. Gan, J.K. Yan, X.W. Zhang. Influence of Nano-Titania Additive on the Property of TiO2 Varistor Ceramics, J. Semiconductor Technology. 2(2006)102.

[5] H. Zhang, Z.C. Li, X.D. Zou, B. Bergman. Investigation of La9. 33 Si6O26 Oxygen Ionic Conductor, J. Materials Science and Engineering B. 5(2007) 629-632.

[6] X.B. Chen et al. X-ray spectroscopic study of the electronic structure of visible-light responsive N-, C- and S-doped TiO2, J. Journal of Electron Spectroscopy and Related Phenomena. 162(2008) 67-73.

DOI: 10.1016/j.elspec.2007.09.002

[7] A. Fujishima, K. Honda. Electronchemical photolysis of water at a semiconductor electrode, J. Nature. 283(1972)37–38.

[8] W.B. Su, J.F. Wang, C.G. Li. Y doped effect on the properties of TiO2 low pressure sensitive ceramics, J. Piezoelectrics and Acoustooptics. 5(2011)402-405.

[9] J.K. Yan, G.Y. Gan, J.H. Du, J.H. Yi . Formation mechanism of secondary phase in (La, Nb) codoped TiO2 ceramics varistor, J. Procedia Engineering. 27(2012)1271-1283.

DOI: 10.1016/j.proeng.2011.12.582

[10] A. Bondar, L.N. Koroleva, and N.A. Toropov, Izv. Akad. Nauk SSSR, Neorg. Mater. 10 (1996)1730-1733.

[11] J.K. Yan, G.Y. Gan, J.H. Du, J.L. Sun. Second Phases of (La, Nb)-Codoped TiO2 Varistor Ceramic, J. Journal of Physics: Conference Series. 152(2009)12-67.

DOI: 10.1088/1742-6596/152/1/012067

[12] J.K. Yan, G.Y. Gan, H.F. Chen, X.W. Zhang, J.L. Sun. Study on the secondary phase of (La, Nb) codoped TiO2 ceramics varistor, J. Piezoelectrics and Acoustooptics. 30(2008)19-22.