Microstructure and Microwave Dielectric Property of (1-x)(Sr0.2Nd0.208Ca0.488)TiO3-xNd(Ti0.5Mg0.5)O3 Ceramics with High Quality Factor

doi:10.15541/jim20150155

Abstract

Abstract:

(1-x)(Sr_0.2Nd_0.208Ca_0.488)TiO₃-xNd(Ti_0.5Mg_0.5)O₃(0.3≤ x ≤0.4, SNCT-NTMx) ceramics were prepared by solid sate reaction technique. In addition, the crystal structure, microstructures, sintering properties, and microwave dielectric properties of the SNCT-NTMx ceramics were investigated. These results showed that an orthorhombic perovskite structure with a minor amount of unknown secondary phase was formed in the ceramics with the compositions of 0.3≤ x ≤0.35. Additionally, the content of the second phase gradually increased with increasing x value to 0.4. For the SNCT-NTMx ceramics with an increase in NTM content, the dielectric constant (ε_r) decreased, while the quality factor (Q×f) effectively improved, and the temperature coefficient of resonant frequencies (τ_f) gradually shifted to negative direction. An optimized microwave dielectric properties with ε_r~ 50.1, Q×f ~ 44, 910 GHz and τ_f~ -1.7×10^-6/℃ could be obtained for the ceramics with x = 0.35 after being sintered at 1520℃ for 4 h.

Key words: (Sr0.2Nd0.208Ca0.488)TiO3, Nd(Ti0.5Mg0.5)O3, perovskite, microwave dielectric properties

CLC Number:

TM277

QU Jing-Jing, WEI Xing, JING Ben-Qin, LIU Fei, YUAN Chang-Lai. Microstructure and Microwave Dielectric Property of (1-x)(Sr_0.2Nd_0.208Ca_0.488)TiO₃-xNd(Ti_0.5Mg_0.5)O₃ Ceramics with High Quality Factor[J]. Journal of Inorganic Materials, 2015, 30(11): 1213-1217.

Figures/Tables 5

Fig. 1 XRD patterns of SNCT-NTMx(0.3≤x≤0.4) specimens sintered at 1520℃ for 4 h The inset represents the enlarged figures of the (121) peaks

Table 1 Lattice parameters, unit cell volume and dielectric properties of the SNCT-NTMx (0.3≤ x ≤0.4) ceramics sintered at 1520℃ for 4 h

x	a /nm	b / nm	c/ nm	Unit cell volume/nm³	ε_r	Q×f/GHz	τ_f /(×10^-6,℃^-1 )
0.3	0.54593	0.77355	0.54090	0.22842	55.2	35090	9.2
0.35	0.54624	0.77367	0.54211	0.22910	50.1	44910	-1.7
0.4	0.54647	0.77221	0.54901	0.23171	47.1	46290	-18.2

Fig. 2 Surface SEM images (a-c) and EDS patterns (d,e) of the SNCT-NTMx (0.3≤x≤0.4) specimens sintered at 1520℃ for 4 h

Fig. 3 Bulk density of the SNCT-NTMx (0.3≤x≤0.4) ceramics as a function of sintering temperature

Fig. 4 Dielectric constant (a) and Q×f (b) value of the SNCT-NTMx (0.3≤x≤0.4) ceramics as a function of sintering temperature

References 19

[1]	李标荣, 王莜珍, 张绪礼. 无机电介质. 武昌: 华中理工大学出版社, 1995: 154-166.
[2]	KIM E S, YOON K H.Microwave dielectric properties of (1-x)CaTiO3-xLi1/2Sm1/2TiO3 ceramics.J. Eur. Ceram. Soc., 2003, 23: 2397-2401.
[3]	YOON K H, Chang Y H, Kim W S, et al.Dielectric properties of Ca1-xSm2x/3TiO3-Li1/2Ln1/2TiO3 ceramics. Jpn. J. Appl. Phys., 1996,35: 5145-5149.
[4]	LIANG FEI, YE FANG-PING, LÜ WEN-ZHONG.Study on 0.7CaTiO3-0.3(LaxNd1-x)AlO3 microwave dielectric ceramics.Electronic Components and Materials, 2012, 31(11): 1-5.
[5]	TONG QI-MING, ZHONG CHAO-WEI, LI PAN-MIN, et al.Study on NdAlO3-CaTiO3 microwave dielectric ceramics.Electronic Components and Materials, 2011, 30(9): 1-4.
[6]	LIU F, YUAN C L, LIU X Y, et al.Microstructures and dielectric properties of (1-x)SrTiO3-xCa0.61Nd0.26TiO3 ceramic system at microwave frequencies.J. Mater. Sci.: Mater. Electron., 2015, 26(1): 128-133.
[7]	CHO S Y, KIM C H, KIM D W, et al.Dielectric properties of Ln(Mg1/2Ti1/2)O3 as substrates for high Tc superconductor thin films.J. Mater. Res., 1999, 14: 2484-2487.
[8]	KIM J B, YOON K H, CHO Y S.Compositional dependence of microwave dielectrics in (1-x)(Na1/2Nd1/2)TiO3-xNd(Mg1/2Ti1/2)O3 ceramics.J. Am. Ceram. Soc., 2003, 86: 1159-1161.
[9]	HAKKI B W, COLEMAN P D.A dielectric resonator method of measuring inductive capacities in the millimeter range.IRE. Trans. Microw. Theory. Tech., 1960, 8: 402-410.
[10]	COURTNEY W E.Analysis and evaluation of a method of measuring complex permittivity and permeability of microwave materials.IEEE. Trans. MTT., 1970, 18: 476-485.
[11]	NISHIKAWA T, WAKINO K, TAMURA H.Precise measurement method for temperature coefficient of microwave dielectric resonator material. IEEE MTT-S Int Microwave Symp. Dig., 1987, 3: 277-280.
[12]	SHANNON R D.Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides.J. Acta Cryst. A, 1976, 32: 751-767.
[13]	LI YUE-MING, SONG TING-TING, YOU YUAN, et al.Study on the microwave dielectric properties of (1-x)CaTiO3-x(Li1/2Sm1/2)TiO3 ceramics.Journal of Inorganic Materials, 2008. 23(6): 696-699.
[14]	YANG QIU-HONG, KIM EUNG-SOO, XU JUN.Effect of A-site substitution by Nd3+ on the microwave dielectric properties of (Pb0.5Ca0.5)(Fe0.5Nb0.5)O3 ceramics.Journal of Inorganic Materials, 2003, 18(5): 1053-1055.
[15]	SHANNON R D.Dielectric poparizabilities of ions in oxides and flucorides.J. Appl. Phys. 1993, 73(1): 348-366.
[16]	HSUN C H, TSAI S H.Dielectric characteristics of Sr substitution on Ca0.4Sm0.4TiO3 ceramics at microwave frequency.Ceramics International, 2014, 40: 10111-10114.
[17]	KUCHEIKO S, CHOI J W, KIM H J, et al. Microwave dielectric properties of CaTiO3-Ca(Al1/2Ta1/2)O3 ceramics. J. Am. Ceram. Soc., 1996, 79: 2739-2740.
[18]	LU WEN-ZHONG, WANG HONG-LING.The structure, dielectric behavior and research development of microwave dielectric ceramics with high εr.Journal of Functional Materials, 2000, 31(6): 572-576.
[19]	KHALYAVIN D D, SALAK A N, SENOS A M R, et al. Structure sequence in the CaTiO3-LaAlO3 microwave ceramics revised.J. Am. Ceram. Soc., 2006, 89(5): 1721-1723.

Microstructure and Microwave Dielectric Property of (1-x)(Sr_0.2Nd_0.208Ca_0.488)TiO₃-xNd(Ti_0.5Mg_0.5)O₃ Ceramics with High Quality Factor

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