Enhancement microwave dielectric properties of Mg₂SnO₄ ceramics by substituting Mg²⁺ with Ni²⁺

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• 作者：Yih-Chien Chen ; ^{EE049@mail.lhu.edu.tw} ; ^{ycchenncku@yahoo.com} ; Yen-Nien Wang ; Chih-Hao Hsu
• 关键词：Ceramics ; Sintering ; Electronic characterization ; Dielectric properties
• 刊名：Materials Chemistry and Physics
• 出版年：2012
• 期刊代码：58_02540584
• 类别：ms
• 出版时间：16 April, 2012
• 卷：133
• 期：2-3
• 页码：829-833
• 文件大小：654 K

摘要

The microwave dielectric properties of (Mg_(1鈭?em>x)Ni_x)₂SnO₄ ceramics were examined with a view to their exploitation for mobile communication. The (Mg_(1鈭?em>x)Ni_x)₂SnO₄ ceramics were prepared by the conventional solid-state method with various sintering temperatures. The X-ray diffraction (XRD) patterns of the (Mg_0.95Ni_0.05)₂SnO₄ ceramics revealed no significant variation of phase with sintering temperatures. A maximum density of 4.77 g cm^鈭? was obtained for (Mg_0.95Ni_0.05)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 (Mg_0.95Ni_0.05)₂SnO₄ ceramics that were sintered at 1550 掳C for 4 h.