Low Temperature Sinter-Ability of Microwave Dielectric Ceramics 0.4(Ca0.61Nd0.26)TiO3-0.6(Li0.5Sm0.5)TiO3


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Microwave dielectric ceramics 0.4(Ca0.61Nd0.26)TiO3-0.6(Li0.5Sm0.5)TiO3 (CNLST) were prepared by doping CuO as the liquid-phase sintering aid. The effects of CuO on the microstructures and dielectric properties were investigated. Due to the liquid-phase effect, the sintering temperature of CNLST with 0.5wt.% CuO addition has be effectively reduced to 1100°C, while good microwave dielectric properties of εr=83.4, Q•f=3880GHz, τf =2.1ppm/°C.



Key Engineering Materials (Volumes 368-372)

Edited by:

Wei Pan and Jianghong Gong




X. D. Guo et al., "Low Temperature Sinter-Ability of Microwave Dielectric Ceramics 0.4(Ca0.61Nd0.26)TiO3-0.6(Li0.5Sm0.5)TiO3", Key Engineering Materials, Vols. 368-372, pp. 176-178, 2008

Online since:

February 2008




[1] S. Nishigaki, H. Kato, S. Yano, et al.: Am. Ceram. Soc. Bull. Vol. 66 (1987), p.1405.

[2] M.W. Zuo, W. Li, J.L. Shi and Q. Zeng: Mater. Res. Bull. Vol. 41 (2006), p.1127.

[3] W. Wang: Master Degree Thesis (Tsinghua University, Beijing, China, 2006).

[4] E.S. Kim, B.S. Chun, D.W. Yoo and K.H. Yoon: Mater. Sci. Eng. Vol. 99 (2003), p.247.

[5] C.S. Hsu, C.L. Huang et al.: Ceramics International, Vol. 30 (2004), p. (2067).

[6] D.C. Dube: J. Am. Ceram. Soc., Vol. 80 (1997), p.1095.

[7] B.W. Hakki, P.D. Coleman: IEEE Trans. Microwave Theor. Technol. Vol. 8 (1960), p.402. Fig. 5. The temperature coefficient of resonant frequency (τf) of CNLST ceramics with various amounts of CuO added sintered at 1100ºC for 4 h.