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Effects of Ba/Ti ratio on tetragonality, Curie temperature, and dielectric properties of solid-state-reacted BaTiO3 powder

Published online by Cambridge University Press:  03 October 2012

Che-Yuan Chang ,
Ru-Li Wang  and
Chi-Yuen Huang
Che-Yuan Chang
Affiliation:
Department of Resources Engineering, National Cheng Kung University, Tainan 70101, Taiwan
Ru-Li Wang
Affiliation:
Department of Resources Engineering, National Cheng Kung University, Tainan 70101, Taiwan
Chi-Yuen Huang*
Affiliation:
Department of Resources Engineering, National Cheng Kung University, Tainan 70101, Taiwan
*
a)Address all correspondence to this author. e-mail: cyhuang@mail.ncku.edu.tw
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Abstract

The effects of the barium/titanium (Ba/Ti) ratio on the crystalline phase, Curie temperature, and dielectric properties of solid-state-reacted BaTiO3 powder were investigated. The experimental results showed that tetragonality decreased and the Curie temperature shifted to lower temperature when the Ba/Ti ratio strayed from 1.0. The BaTiO3 powder had the maximum dielectric constant when the Ba/Ti approaching 1.0.

Keywords

microstructuredielectric propertiespowder
Type
Articles
Information
Journal of Materials Research , Volume 27 , Issue 23 , 14 December 2012 , pp. 2937 - 2942
Copyright
Copyright © Materials Research Society 2012

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References

REFERENCES

Hu, Y.H., Harmer, M.P., and Smyth, D.M.: Solubility of BaO in BaTiO3. J. Am. Ceram. Soc. 68, 372–376 (1985).CrossRefGoogle Scholar
Lee, S., Randall, C.A., and Liu, Z.K.: Modified phase diagram for the barium oxide–titanium dioxide system for the ferroelectric barium titanate. J. Am. Ceram. Soc. 90, 2589–2594 (2007).CrossRefGoogle Scholar
Abelard, P.: Ceramic Materials: Processes, Properties and Applications (ISTE, London, 2007), pp. 98–130.Google Scholar
Dufour, L.C., Monty, C., and Ervas, G.P.: Surfaces and Interfaces of Ceramic (Materials Kluwer Academic, Boston, MA, 1989), pp. 521–533.CrossRefGoogle Scholar
Uchino, K., Sadanaga, E., and Hirose, T.: Dependence of the crystal structure on particle size in barium titanate. J. Am. Ceram. Soc. 72, 1555–1558 (1989).CrossRefGoogle Scholar
Begg, B.D., Vance, E.R., and Nowotny, J.: Effect of particle size on the room-temperature crystal structure of barium titanate. J. Am. Ceram. Soc. 77, 3186–3192 (1994).CrossRefGoogle Scholar
Freire, J.D. and Katiyar, R.S.: Lattice dynamics of crystals with tetragonal BaTiO3 structure. Phys. Rev. B: Condens. Matter 37, 2074–2085 (1988).CrossRefGoogle ScholarPubMed
Templeton, L.K. and Pask, J.A.: Formation of BaTiO3 from BaCO3 and TiO2 in air and in CO2. J. Am. Ceram. Soc. 42, 212–216 (1959).CrossRefGoogle Scholar
Felgner, K.H., Muller, T., Langhammer, H.T., and Abicht, H.P.: On the formation of BaTiO3 from BaCO3 and TiO2 by microwave and conventional heating. Mater. Lett. 58, 1943–1947 (2004).CrossRefGoogle Scholar
Hwang, N.M., Yoon, S.H., Lee, J.H., and Kim, D.Y.: Effect of the liquid-phase characteristic on the microstructures and dielectric properties of donor- (niobium) and acceptor- (magnesium) doped barium titanate. J. Am. Ceram. Soc. 86, 88–92 (2003).Google Scholar
Lee, J.K., Hong, K.S., and Jang, J.W.: Roles of Ba/Ti ratios in the dielectric properties of BaTiO3 ceramics. J. Am. Ceram. Soc. 84, 2001–2006 (2001).CrossRefGoogle Scholar
Dutta, P.K., Gallagher, P.K., and Twu, J.: Raman spectroscopic and thermoanalytical studies of the reaction of Ba(OH)2 with anatase and titanium oxide gels. Chem. Mater. 4, 847–851 (1992).CrossRefGoogle Scholar
Arlt, G., Hennings, D., and de With, G.: Dielectric properties of fine-grained barium titanate ceramics. J. Appl. Phys. 58, 1619–1625 (1985).CrossRefGoogle Scholar
Huang, C.Y.: Thermal expansion behavior of sodium zirconium phosphate structure type materials. Ph.D. Thesis, The Pennsylvania State University, University Park, PA, 1990.Google Scholar
Lee, H.G. and Kim, H.G.: Ceramic particle size dependence of dielectric and piezoelectric properties of pizeoelectric ceramic-polymer composition. J. Appl. Phys. 67, 2024–2028 (1990).CrossRefGoogle Scholar
Petrovsky, V., Manohar, A., and Dogan, F.: Dielectric constant of particles determined by impedance spectroscopy. J. Appl. Phys. 100, 014102 (2006).CrossRefGoogle Scholar
Petrovsky, V., Petrovsky, T., Kamlapurkar, S., and Dogan, F.: Characterization of dielectric particles by impedance spectroscopy (Part I). J. Am. Ceram. Soc. 91, 1814–1816 (2008).CrossRefGoogle Scholar
Petrovsky, V., Petrovsky, T., Kamlapurkar, S., and Dogan, F.: Physical modeling and electrodynamic characterization of dielectric slurries by impedance spectroscopy (Part II). J. Am. Ceram. Soc. 91, 1817–1819 (2008).CrossRefGoogle Scholar
Petrovsky, V., Petrovsky, T., Kamlapurkar, S., and Dogan, F.: Dielectric constant of barium titanate powders near Curie temperature. J. Am. Ceram. Soc. 91, 3590–3592 (2008).CrossRefGoogle Scholar