Low Temperature Sintering (Ba1-xSrx)TiO3 Ceramics by Using CuO-TiO2 Mixture as Sintering Aid


Article Preview

1wt% CuO-TiO2 (molar ratio, CuO/TiO2= 1) mixture is added as the liquid phase sintering aid to develop the sintering and dielectric characteristics of (Ba1-xSrx)TiO3 (x=0, 0.1, and 0.2) ceramics. The crystal characteristics of calcined (Ba1-xSrx)TiO3 powders and sintered (Ba1-xSrx)TiO3 ceramics are developed by using X-ray diffraction method. The calcined (Ba1-xSrx)TiO3 powders and 1050oC-sintered (Ba1-xSrx)TiO3 ceramics reveal a tetragonal or pseudo-cubic structure and the 1150oC-sintered(Ba1-xSrx)TiO3 ceramics reveal a tetragonal structure. Sintered at 1100oC, the (Ba1-xSrx)TiO3 ceramics present a porous structure; Sintered at 1150oC, the (Ba1-xSrx)TiO3 ceramics present a uniform growth. The grain size decreases with the increase of SrO content. In this study, the dielectric characteristics of CuO-TiO2 mixture-fluxed (Ba1-xSrx)TiO3 ceramics are also developed.



Key Engineering Materials (Volumes 336-338)

Edited by:

Wei Pan and Jianghong Gong




C. C. Chan et al., "Low Temperature Sintering (Ba1-xSrx)TiO3 Ceramics by Using CuO-TiO2 Mixture as Sintering Aid", Key Engineering Materials, Vols. 336-338, pp. 62-65, 2007

Online since:

April 2007




[1] S.M. Neirman: J. Mater. Sci. Vol. 23 (1988), p.3973.

[2] K.H. Yoon, J.H. Kim, K.H. Jo, H.I. Song S.O. Yoon and C.S. Kim: J. Mater. Sci. Vol. 23 (1988), p.61.

[3] R. Vivekanadan and T.R.N. Kutty: Mater. Sci. Engng. Vol. B6 (1990), p.221.

[4] I. Burn: J. Mater. Sci. Vol. 17 (1982), p.1398.

[5] I. Burn: US patent 4283753, (1981).

[6] J.M. Haussonne, G. Desgardin, P.H. Bajolet and B. Raeau: J. Am. Ceram. Soc. Vol. 66 (1983), p.801.

[7] D.A. Tolino and J.B. Blum: J. Am. Ceram. Soc. Vol. 68 (1985), pp. C-292.

[8] C.N. Pieczulewski, J.E. McAdams and T.O. Mason: J. Am. Ceram. Soc. Vol. 73 (1990), p.3088.

[9] M. Arjomand and D.J. Machin: J. Chem. Soc. Dalton Trans. (1975), p.1061.

[10] C.F. Yang and S.H. Lo: Mater. Resear. Bull. Vol. 32 (1997).