摘要
The microwave dielectric properties of (Mg(1鈭?em>x)Nix)2SnO4 ceramics were examined with a view to their exploitation for mobile communication. The (Mg(1鈭?em>x)Nix)2SnO4 ceramics were prepared by the conventional solid-state method with various sintering temperatures. The X-ray diffraction (XRD) patterns of the (Mg0.95Ni0.05)2SnO4 ceramics revealed no significant variation of phase with sintering temperatures. A maximum density of 4.77 g cm鈭? was obtained for (Mg0.95Ni0.05)2SnO4 ceramic, sintered at 1550 掳C for 4 h. Dielectric constant (蓻r) of 8.72, quality factor (Q 脳 f) of 103,100 GHz, and temperature coefficient of resonant frequency (蟿f) of 鈭?2.8 ppm 掳C鈭? were obtained for (Mg0.95Ni0.05)2SnO4 ceramics that were sintered at 1550 掳C for 4 h.