Microwave Dielectric Properties of (Ba1-xMgx)5Nb4O15 Ceramics

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概要

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• The effects of magnesium substitution for barium on the microstructure and microwave dielectric properties of Ba5Nb4O15 are investigated using X-ray diffractometry, scanning electron microscopy, Raman spectroscopy, and microwave dielectric properties measurement. The structure of NbO6 octahedra and the ionic polarizability have a significant effect on the relative permittivity ($\varepsilon_{\text{r}}$). Furthermore, a distinct correlation is noted between the secondary phases and microwave dielectric properties. The magnesium substitution at $x=0.6$ for (Ba1-xMgx)5Nb4O15 formulation has the 27.6 of $\varepsilon_{\text{r}}$, 13,985 GHz of $Q\times f$, and 2.5 ppm/°C of $\tau_{\text{f}}$, and it is suitable for microwave resonator application.

• 2008-06-25

著者

• Huang Chi-yuen

  Department Of Mineral And Petroleum Engineering National Cheng Kung University

• Lee Chun-Te

  Department of Resources Engineering, National Cheng Kung University, No. 1, University Road, Tainan 701, Taiwan

• Chen Chiang-Tieh

  Department of Resources Engineering, National Cheng Kung University, No. 1, University Road, Tainan 701, Taiwan

• Wang Chih-Jen

  Department of Resources Engineering, National Cheng Kung University, No. 1, University Road, Tainan 701, Taiwan

関連論文

• Structure and Microwave Dielectric Property Relations in Barium Cobalt Magnesium Niobate Ceramics
• Phase Evolution and Nucleus Growth Observation of Solid-State BaTiO3 Powder Prepared by High-Energy Bead Milling for Raw Material Mixing
• Effects of Porosity on Dielectric Properties of BaTiO_3 Ceramics
• Microwave Dielectric Properties of (Ba1-xMgx)5Nb4O15 Ceramics
• Structural and Dielectric Characteristics of Calcium Strontium Magnesium Niobate
• Erratum: ``Structure and Microwave Dielectric Property Relations in Barium Cobalt Magnesium Niobate Ceramics''

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