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| The Sintering Behavior and Microwave Dielectric Properties of Mg4Nb2O9/SrTiO3 Composite Ceramic |
| YAO Guoguang1, IU Peng2, MA Hong1, TIAN Xiulao1 |
1.School of Science, Xi'an University of Post and Telecommunications, Xi'an 710121
2.College of Physics and Information Technology, Shaanxi Normal University, Xi'an 710062 |
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Cite this article:
YAO Guoguang LIU Peng MA Hong TIAN Xiulao. The Sintering Behavior and Microwave Dielectric Properties of Mg4Nb2O9/SrTiO3 Composite Ceramic. Chin J Mater Res, 2010, 24(4): 444-448.
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Abstract The effects of Li2CO3–V2O5 (LV) co-doped on the sinterability, phase compositions and microwave dielectric properties of 0.6Mg4Nb2O9– 0.4SrTiO3 composite ceramics were investigated. It is found that the densification sintering temperature of 0.6Mg4Nb2O9–0.4SrTiO3 is lowed to 1175℃ with an amount LV addtion. The second phases Sr(NbTi)O3+δ and MgO were confirmed by the XRD and EDX spectrum analysis. The specimens with 1.5% LV sintered at 1175℃ for 5 h shows excellent dielectric propertis: εr=20.1, Q · f=10240 GHz (at 8.5 GHz), τf=0.15 ppm/.
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Received: 02 April 2010
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| Fund: Supported by Natural Science Foundation of Shaanxi Province No.2009JM6001 and Department Education of of Shaanxi Province No. 09JK729. |
| 1 Huang C L, Chen J Y. High-Q Microwave Dielectrics in the (Mg1-xCox)2TiO4 Ceramics. J. Am. Ceram. Soc., 92(2), 379 (2009)
2 Prabhakaran S A, Mailadil T S. Microwave Dielectric Properties and Low-Temperature Sintering of Cerium Oxide for LTCC Applications. J. Am. Ceram. Soc., , 92(1), 96(2009)
3 Zhang Q L, Yang H, Sun H P. A new microwave ceramic with low-permittivity for LTCC applications. J. Eur. Ceram. Soc., , 28, 605(2008)
4 Akinori K, Hirotaka O. Low-temperature sintering and microstructure of Mg4(Nb2-xVx)O9 microwave dielectric ceramic by V substitution for Nb. Jpn. J. Appl.Phys., , 42, 6154(2003)
5 Dai S X, Huang R F, Wilcox D L.Use of titanates to achieve a temperature-stable low-temperature co-fired ceramic dielectric for wireless applications. J. Am. Ceram. Soc., 85, 828(2002)
6 Ogawa H, Kan A, Ishihara S. Crystal Structure of Corundum Type Mg4(Nb2-xTax)O9 Microwave Dielectric Ceramics with Low Dielectric Loss. J. Eur. Ceram.Soc., 23(14), 2485(2003)
7 Kan A., Ogawa H, Yokoi A. Sintering Temperature Dependence of Microwave Dielectric Properties in Mg4(TaNb1-xVx)O9 Compounds. Mater. Res. Bull., 41, 1178(2006)
8 Kan A, Ogawa H, Yokoi A. Crystal Structural Refinement of Corundum-Structured A4M2O9 (A=Co and Mg, M=Nb and Ta) Microwave Dielectric Ceramics by High-Temperature X-ray Powder Diffraction. J. Eur. Ceram. Soc., 27(8), 2977(2007)
9 Liu P, Su W A, Yao G G. The Sintering Behavior and Microwave Dielectric Properties of Mg4(Nb,Sb)O9 Ceramics. J. Electroceram, , 21, 478(2008)
10 Lim SW, Bang JJ. Microwave dielectric properties of Mg4Nb2O9 ceramics produced by hydrothermal synthesis. J. Electroceram., , 23, 116(2009)
11 Atsushi Y, Ogawa H, Kan A. Microwave dielectric properties of Mg4Nb2O9–3.0 wt% LiF ceramics prepared with CaTiO3 additions. J. Eur. Ceram.Soc., 25, 2871(2005)
12 Yao G G, Liu P. Low-temperature sintering and microwave dielectric properties of (1-x)Mg4Nb2O9-xCaTiO3 ceramics[J]. Physica B, , 405(2), 547(2010)
13 Huang C L, Wang J J, Chang Y P. Dielectric Properties of Low Loss (1–x)(Mg0.95Zn0.05)TiO3–xSrTiO3 Ceramic System at Microwave Frequency. J. Am. Ceram. Soc., 90(3), 858(2007)
14 Huang C L, Chen J Y, Chao C. Dielectric Properties of a New Ceramic System (1-x)Mg4Nb2O9-xCaTiO3 at Microwave Frequency. Mater. Res. Bull., 44, 1 111(2009)
15 Huang C L, Chen J Y, Chao C. Dielectric Properties and Mixture Behavior of Mg4Nb2O9-SrTiO3 Ceramic System at Microwave Frequency. J. Alloys. Compd., 471, 9(2009)
16 Liu P, Yao G G, Bian X. B. Low Temperature Sintering and microwave Dielectric Properties of Mg4Nb2O9 Ceramics. J. Electroceram., , 21, 149(2008)
17 Elcoro L, Perez-Mato J M, Withers R. A new superspace approach to the layered perovskite-related LanTin-δO3n and Srn(Nb,Ti)nO3n 2 compound series. Ferroelectrics, 250(1), 39(2001)
18 TatekawaT, Higuchi Y. Role of donor andacceptor ions in the dielectric loss tangent of (Zr0.8Sn0.2)TiO4 dielectric resonator material. J. Am. Ceram. Soc, 78(3), 793(1995)
19 Yoon S O, Yoon J H, Kim K S, et al. Microwave dielectric properties of LiNb3O8 ceramics with TiO2 additions. J. Eur Ceram Soc, 26(10–11), 2 031(2006)
20 Lei W, Lv W Z, Liu W D, et al. Phase Evolution and Microwave Dielectric Properties of (1-x)ZnAl2O4-xMg2TiO4 Ceramics. J. Am. Ceram. Soc. 92, 105(2009)
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