首页|Phase transition and microwave dielectric properties of Al2-xScxMo3O12 solid solutions
Phase transition and microwave dielectric properties of Al2-xScxMo3O12 solid solutions
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NSTL
Elsevier
? 2022 Elsevier B.V.Al2-xScxMo3O12 (x = 0 ? 0.6) ceramics were utilised using a convenient solid-state reaction. The doped Sc3+ took the place of Al3+ and formed a pure Al2-xScxMo3O12 phase. With the doping of Sc3+, the phase transition temperature was adjusted from 178 °C to below room temperature when x ≥ 0.4. Besides, the Q × f increased a lot. Pure monoclinic Al2Mo3O12 presented microwave dielectric properties of εr = 6.76, Q × f = 27,330 GHz and τf = ?59.52 ppm/°C and changed from monoclinic phase to orthorhombic phase at 178 °C. When x = 0.4, Al1.6Sc0.4Mo3O12 presented orthorhombic phase at room temperature. Pure orthorhombic Al1.5Sc0.5Mo3O12 showed the best microwave dielectric properties of εr = 7.26, Q × f = 82,000 GHz and τf = ?53.91 ppm/°C.
Guo Y.-B.、Du K.、Yin C.-Z.、Yang J.-Q.、Luo W.、Wang F.、Lu W.-Z.、Lei W.
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School of Optical and Electronic Information Key Lab of Functional Materials for Electronic Information (B) of MOE Huazhong University of Science and Technology
NSTL
Elsevier
