Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 623, Issue -, Pages 238-242Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2014.10.149
Keywords
Mg2TiO4; Ceramics; HEBM; Microwave dielectric properties; X-ray diffraction
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Funding
- National Natural Science Foundation of China [51072110, 51132003, 51272150]
- Open Fund of Key Laboratory of Electronic Thin Films and Integrated Devices, UESTC [KFJJ201106]
- Specialized Research Fund for the Doctoral Program of Higher Education [20120202110004]
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Mg2TiO4 ceramics were prepared with MgO and TiO2 by high energy ball milling method. Highly reactive nanosized Mg2TiO4 powders were successfully synthesized at 1000 degrees C in oxygen atmosphere for milled 30 h, about 200 degrees C lower than that by a conventional solid-state reaction process. The pure Mg2TiO4 nanopowders average particle size were reduced to about 163 nm. Mg2TiO4 ceramics at 1175 degrees C had the excellent microwave dielectric properties epsilon(gamma) = 13.9, Q x f = 98,600 GHz, tau(f) = -50.9 ppm/degrees C. (C) 2014 Elsevier B.V. All rights reserved.
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