کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5440252 | 1510140 | 2018 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A novel low-temperature firable La2Zr3(MoO4)9 microwave dielectric ceramic
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A novel low-temperature fired La2Zr3(MoO4)9 microwave dielectric ceramic was successfully fabricated by a conventional solid-state reaction method. The powder compact was densified in air in the temperature range of 700-800 °C for 4 h. X-ray diffraction analysis indicated that all studied samples presented a single phase structure. Rietveld refinement results further confirmed that La2Zr3(MoO4)9 belonged to a trigonal system with space group R3¯c. Scanning electron microscopy results revealed dense and homogeneous microstructure of La2Zr3(MoO4)9 ceramics as sintered in the temperature range of 725-800 °C. The La2Zr3(MoO4)9 ceramic sintered at 775 °C for 4 h possessed excellent microwave dielectric properties of relative permittivity εr â¼Â 10.8, quality factor Qxf â¼Â 50,628 GHz (at 10.45 GHz), and temperature coefficient of the resonant frequency Ïf â¼Â â38.8 ppm/°C, showing great potentials for applications of low temperature co-fired ceramic technology.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the European Ceramic Society - Volume 38, Issue 1, January 2018, Pages 339-342
Journal: Journal of the European Ceramic Society - Volume 38, Issue 1, January 2018, Pages 339-342
نویسندگان
Weiqiong Liu, Ruzhong Zuo,