Ultra-Low Loss Dielectric Properties of (Mg1-xNix)2(Ti0.95Sn0.05)O4 Microwave Ceramics
Microwave dielectric ceramic materials of (Mg1-xNix)2(Ti0.95Sn0.05)O4 for x = 0.01, 0.03, 0.05, 0.07 and 0.09 were prepared and sintered at 1250–1400 ºC. The microstructure and microwave dielectric properties of the ceramic materials were examined and measured. The observations shows that the content of Ni2+ ions has little effect on the crystal structure, dielectric constant, temperature coefficient of resonant frequency (τf) and sintering temperatures of the ceramics. However, the quality values (Q×f) are greatly improved due to the addition of Ni2+ ions. The present study showed that the ceramic material prepared for x = 0.05 and sintered at 1325ºC had the best Q×f value of 392,000 GHz, about 23% improvement compared with that of Mg2(Ti0.95Sn0.05)O4.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1094271Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1608
 T. Tjelta, A. Nordbotten, and H. Loktu, "Broadband radio access for multimedia services," Telektronikk, vol. 96, 2000, pp. 2-10.
 V. Ferreira, F. Azough, J. Baptista, and R. Freer, "DiC12: Magnesium titanate microwave dielectric ceramics," Ferroelectrics, vol. 133, 1992, pp. 127-132.
 A. Belous, O. Ovchar, D. Durilin, M. M. Krzmanc, M. Valant, and D. Suvorov, "High-Q Microwave Dielectric Materials Based on the Spinel Mg2TiO4," J. Am. Ceram. Soc., vol. 89, 2006, pp. 3441-3445.
 C.-L. Huang and J.-Y. Chen, "Low-Loss Microwave Dielectrics Using Mg2(Ti1−xSnx)O4 (x=0.01–0.09) Solid Solution," J. Am. Ceram. Soc., vol. 92, 2009, pp. 2237-2241.
 C.-L. Huang and S.-S. Liu, "Low-Loss Microwave Dielectrics in the (Mg1−xZnx)2TiO4 Ceramics," J. Am. Ceram. Soc., vol. 91, 2008, pp. 3428-3430.
 H. Cheng-Liang and L. Shi-Sheng, "Characterization of Extremely Low Loss Dielectrics (Mg 0.95 Zn0.05 )TiO 3 at Microwave Frequency," Japanese Journal of Applied Physics, vol. 46, 2007, pp. 283-285.
 B. W. Hakki and P. D. Coleman, "A Dielectric Resonator Method of Measuring Inductive Capacities in the Millimeter Range," IRE Trans. Microwave Theory Tech., vol. 8, 1960, pp. 402-410.
 G.-h. Chen, H.-r. Xu, and C.-l. Yuan, "Microstructure and microwave dielectric properties of Li2Ti1−x(Zn1/3Nb2/3)xO3 ceramics," Ceram. Int., vol. 39, 2013, pp. 4887-4892.