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Dielectric properties of Ca(W1−xMox)4 (x = 0, 0.02, 0.04, 0.06, 0.08) were investigated at microwave frequency. With the increase of MoO3, the dielectric constant (εr) increased slightly, the value of quality factor… Click to show full abstract
Dielectric properties of Ca(W1−xMox)4 (x = 0, 0.02, 0.04, 0.06, 0.08) were investigated at microwave frequency. With the increase of MoO3, the dielectric constant (εr) increased slightly, the value of quality factor (Q × f0) increased considerably and reach the maximum of 79,919 GHz, and the temperature coefficient of resonant frequency (τf) shifted for the minus direction. The relationship between the dielectric properties and polarizability, packing fraction and the oxygen bond valence were discussed. The optimum results were obtained when x = 0.06, the dielectric properties are as follows: εr = 10.22, Q × f0 = 79,919 GHz and τf = −40.39 ppm/°C.
Journal Title: Journal of Materials Science: Materials in Electronics
Year Published: 2017
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