naa a22 4500 510803431 CHVBK 20180411083406.0 cr unu---uuuuu 180411e20130301xx s 000 0 eng 10.1007/s11664-012-2349-2 doi (NATIONALLICENCE)springer-10.1007/s11664-012-2349-2 Improvements in the Sintering Behavior and Microwave Dielectric Properties of Geikielite-Type MgTiO3 Ceramics [Elektronische Daten] [H. Wu, Y. Jiang, Y. Cui, X. Zhang, X. Jia, Y. Yue] Microwavedielectricceramicsbased on geikielite-type MgTiO3 were prepared by an aqueous sol-gel process. The precursor powders and dielectricceramicswere characterized by x-ray diffraction, scanning electron microscopy (SEM), transmission electron microscopy (TEM), andmicrowavemethods.Highly reactive nanosized magnesium titanate powders with particle sizes of 20nm to 40nm were successfully obtained at 500°C as precursors. Sintering characteristics and microwave dielectric properties of MgTiO3 ceramics were studied as a function of sintering temperature from 1100°C to 1300°C. With increasing sintering temperature, the density, ε r, and Qf values increased, saturating at 1200°C with excellent microwave properties of ε r=17.5, Qf=156,300GHz, and τ f =−44ppm/°C. Correlations between the microstructure and dielectric properties of MgTiO3 ceramics were also investigated. TMS, 2012 MgTiO3 nationallicence nanopowder synthesis nationallicence sol-gel nationallicence microwave dielectric properties nationallicence Wu H. School of Materials Science and Engineering, Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials, University of Jinan, 250022, Jinan, China aut Jiang Y. Navy Submarine Academy, 266071, Qingdao, Shandong, China aut Cui Y. School of Materials Science and Engineering, Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials, University of Jinan, 250022, Jinan, China aut Zhang X. School of Materials Science and Engineering, Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials, University of Jinan, 250022, Jinan, China aut Jia X. School of Materials Science and Engineering, Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials, University of Jinan, 250022, Jinan, China aut Yue Y. School of Materials Science and Engineering, Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials, University of Jinan, 250022, Jinan, China aut Journal of Electronic Materials Springer US; http://www.springer-ny.com 42/3(2013-03-01), 445-451 0361-5235 42:3<445 2013 42 11664 https://doi.org/10.1007/s11664-012-2349-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11664-012-2349-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Wu H. School of Materials Science and Engineering, Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials, University of Jinan, 250022, Jinan, China aut NATIONALLICENCE 700 1- Jiang Y. Navy Submarine Academy, 266071, Qingdao, Shandong, China aut NATIONALLICENCE 700 1- Cui Y. School of Materials Science and Engineering, Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials, University of Jinan, 250022, Jinan, China aut NATIONALLICENCE 700 1- Zhang X. School of Materials Science and Engineering, Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials, University of Jinan, 250022, Jinan, China aut NATIONALLICENCE 700 1- Jia X. School of Materials Science and Engineering, Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials, University of Jinan, 250022, Jinan, China aut NATIONALLICENCE 700 1- Yue Y. School of Materials Science and Engineering, Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials, University of Jinan, 250022, Jinan, China aut NATIONALLICENCE 773 0- Journal of Electronic Materials Springer US; http://www.springer-ny.com 42/3(2013-03-01), 445-451 0361-5235 42:3<445 2013 42 11664 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer