Dielectric Properties of SrMnO3-doped K0.5Na0.5NbO3 Lead-Free Ceramics
作者： Xiaojun Sun , Laijun Liu , Saisai Liu , Yanmin Huang , Liang Fang
DOI: 10.1007/S11664-016-4595-1
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摘要: (1−x)K0.5Na0.5NbO3-xSrMnO3 (0.02 ≤ x 0.08) (KNN-xSM) ceramics were fabricated by a conventional solid-state technique. X-ray diffraction of the samples revealed that crystal structure changes from orthorhombic to tetragonal, and finally pseudocubic symmetry with increasing x. Temperature dependence dielectric properties showed temperature (T m) corresponding maximum permittivity decreased Two relaxation processes occurred at high temperatures, which attributed grain boundary responses, respectively. Polarization hysteresis loops (P-E) different electrical fields displayed. P rmax degenerated increase SM due thermally activated leakage current increases. The relationship between defect compensation mechanism is discussed.
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X. Bril, D.A. Ochoa, L. Mestres, G. Dezanneau, X. Vendrell, J.E. García, Improving the functional properties of (K0.5Na0.5)NbO3 piezoceramics by acceptor doping Journal of The European Ceramic Society. ,vol. 35, pp. 125- 130 ,(2015) , 10.1016/J.JEURCERAMSOC.2014.08.033
W. S. Lau, Taejoon Han, General theory of acceptor-oxygen-vacancy complex single donor in high-dielectric-constant metallic oxide insulators Applied Physics Letters. ,vol. 86, pp. 152107- ,(2005) , 10.1063/1.1897051
Shuangshuang Wu, Wenfeng Zhu, Laijun Liu, Danping Shi, Shaoying Zheng, Yanming Huang, Liang Fang, Dielectric Properties and Defect Chemistry of WO 3 -Doped K 0.5 Na 0.5 NbO 3 Ceramics Journal of Electronic Materials. ,vol. 43, pp. 1055- 1061 ,(2014) , 10.1007/S11664-013-2975-3
Dunmin Lin, Qiaoji Zheng, K. W. Kwok, Chenggang Xu, Chun Yang, Dielectric and piezoelectric properties of MnO2-doped K0.5Na0.5Nb0.92Sb0.08O3 lead-free ceramics Journal of Materials Science: Materials in Electronics. ,vol. 21, pp. 649- 655 ,(2010) , 10.1007/S10854-009-9971-7
Donald M. Smyth, Comments on the Defect Chemistry of Undoped and Acceptor-Doped BaTiO 3 Journal of Electroceramics. ,vol. 11, pp. 89- 100 ,(2003) , 10.1023/B:JECR.0000015665.07280.60
Wenjuan Wu, Dingquan Xiao, Jiagang Wu, Wenfeng Liang, Jing Li, Jianguo Zhu, Polymorphic phase transition-induced electrical behavior of BiCoO3-modified (K0.48Na0.52)NbO3 lead-free piezoelectric ceramics Journal of Alloys and Compounds. ,vol. 509, ,(2011) , 10.1016/J.JALLCOM.2011.05.004
Ken-ichi Kakimoto, Izumi Masuda, Hitoshi Ohsato, Ferroelectric and Piezoelectric Properties of KNbO3 Ceramics Containing Small Amounts of LaFeO3 Japanese Journal of Applied Physics. ,vol. 42, pp. 6102- 6105 ,(2003) , 10.1143/JJAP.42.6102
Laijun Liu, Huiqing Fan, Liang Fang, Xiuli Chen, Hichem Dammak, Mai Pham Thi, Effects of Na/K evaporation on electrical properties and intrinsic defects in Na0.5K0.5NbO3 ceramics Materials Chemistry and Physics. ,vol. 117, pp. 138- 141 ,(2009) , 10.1016/J.MATCHEMPHYS.2009.05.024
J. Li, A.W. Sleight, M.A. Subramanian, Evidence for internal resistive barriers in a crystal of the giant dielectric constant material: CaCu3Ti4O12 Solid State Communications. ,vol. 135, pp. 260- 262 ,(2005) , 10.1016/J.SSC.2005.04.028
Yanyan Li, Pengfei Liang, Xiaolian Chao, Zupei Yang, Preparation of CaCu3Ti4O12 ceramics with low dielectric loss and giant dielectric constant by the sol–gel technique Ceramics International. ,vol. 39, pp. 7879- 7889 ,(2013) , 10.1016/J.CERAMINT.2013.03.049