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Mechanochemical effects on the precursor formation and microwave dielectric characteristics of MgTiO3 |
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| Authors: | Jong-Gab Baek Tetsuhiko Isobe Mamoru Senna |
| Affiliation: | Keio University, Department of Applied Chemistry, Faculty of Science and Technology, 3–14-1 Hiyoshi, Kohoku-ku, Yokohama 223, Japan |
| Abstract: | Mechanochemical effects on the formation of Mg---O---Ti complex and microwave dielectric properties of MgTiO3 oxides were studied using several different starting materials. Single phase MgTiO3 powder was obtained after heating (900 °C, 2 h) the mechanically activated precursor from a mixture of two unitary powders, magnesium hydroxide and anatase (MP). Formation of MgTiO3 on subsequent thermal treatment was significantly accelerated by incipient mechanochemical interaction. The Q value of the ceramics sintered at 1350 °C for 2 h from MP was higher than those of three other ceramics due to the uniformity of the microstructure and phase. |
| Keywords: | Mechanochemical effect Mg-O-Ti complex Precursor MgTiO3, oxides Microwave dielectric properties |
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