Investigation on effects of CuO secondary phase on dielectric properties of CaCu3Ti4O12 ceramics
作者： Wen-Xiang Yuan , Zhongkuan Luo , Chundong Wang
DOI: 10.1016/J.JALLCOM.2013.02.035
关键词:
摘要: Abstract Two CaCu 3 Ti 4 O 12 (CCTO) ceramics are separately sintered for 10 h at 975 and 1000 °C. The correlation between the microstructures dielectric properties of has been explored in this paper. CuO secondary phase is separated out locates grain boundaries surface layer when sintering temperature raised up to presence highly reduces grain-boundary thickness helps growth, which together result increase constant. low-frequency loss decreases due density improvement CCTO ceramics, high-frequency increases reduction volume. as low 0.074 obtained from ceramic pellet
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sci-hub.se 参考文章(24)
Jianjun Liu, Chun-Gang Duan, Wei-Guo Yin, W. N. Mei, R. W. Smith, J. R. Hardy, Large Dielectric Constant and Maxwell-Wagner Relaxation in Bi 2/3 Cu 3 Ti 4 O 12 Physical Review B. ,vol. 70, pp. 144106- ,(2004) , 10.1103/PHYSREVB.70.144106
JL Zhang, P Zheng, CL Wang, ML Zhao, JC Li, JF Wang, None, Dielectric dispersion of CaCu3Ti4O12 ceramics at high temperatures Applied Physics Letters. ,vol. 87, pp. 142901- ,(2005) , 10.1063/1.2077864
W.X. Yuan, Z.J. Li, Microstructures and dielectric properties of CaCu3Ti4O12 ceramics via combustion method European Physical Journal-applied Physics. ,vol. 57, pp. 11302- ,(2012) , 10.1051/EPJAP/2011110226
Wen-Xiang Yuan, Impedance and electric modulus approaches to investigate four origins of giant dielectric constant in CaCu3Ti4O12 ceramics Solid State Sciences. ,vol. 14, pp. 330- 334 ,(2012) , 10.1016/J.SOLIDSTATESCIENCES.2011.11.035
Laijun Liu, Huiqing Fan, Xiuli Chen, Pinyang Fang, Electrical properties and microstructural characteristics of nonstoichiometric CaCu3xTi4O12 ceramics Journal of Alloys and Compounds. ,vol. 469, pp. 529- 534 ,(2009) , 10.1016/J.JALLCOM.2008.02.042
Chih-Ming Wang, Kuo-Sheng Kao, Shih-Yuan Lin, Ying-Chung Chen, Shang-Chih Weng, Processing and properties of CaCu3Ti4O12 ceramics Journal of Physics and Chemistry of Solids. ,vol. 69, pp. 608- 610 ,(2008) , 10.1016/J.JPCS.2007.07.049
Junjie Lu, Deqiang Wang, Chongjun Zhao, CaCu3Ti4O12 ceramics from basic co-precipitation (BCP) method: Fabrication and properties Journal of Alloys and Compounds. ,vol. 509, pp. 3103- 3107 ,(2011) , 10.1016/J.JALLCOM.2010.12.010
Seunghwa Kwon, Chien-Chih Huang, M.A. Subramanian, David P. Cann, Effects of cation stoichiometry on the dielectric properties of CaCu3Ti4O12 Journal of Alloys and Compounds. ,vol. 473, pp. 433- 436 ,(2009) , 10.1016/J.JALLCOM.2008.06.015
I. P. Raevski, L. Jastrabik, S. A. Prosandeev, M. A. Malitskaya, A. S. Bogatin, High dielectric permittivity in AFe1/2B1/2O3 nonferroelectric perovskite ceramics (A=Ba, Sr, Ca; B=Nb, Ta, Sb) Journal of Applied Physics. ,vol. 93, pp. 4130- 4136 ,(2003) , 10.1063/1.1558205
T.B. Adams, D.C. Sinclair, A.R. West, Giant Barrier Layer Capacitance Effects in CaCu3Ti4O12 Ceramics Advanced Materials. ,vol. 14, pp. 1321- 1323 ,(2002) , 10.1002/1521-4095(20020916)14:18<1321::AID-ADMA1321>3.0.CO;2-P