کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8017266 1517217 2016 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Crystal structure and microwave dielectric properties of novel (1−x)ZnZrNb2O8−xTiO2 ceramics
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
Crystal structure and microwave dielectric properties of novel (1−x)ZnZrNb2O8−xTiO2 ceramics
چکیده انگلیسی
The crystal structural variations of (1−x)ZnZrNb2O8−xTiO2 ceramics sintered at 1150 °C for 4 h were investigated, and the relationship of these changes and the microwave dielectric properties were studied. Three types of crystal structures were identified with increasing x: wolframite, ixiolite, and rutile. While x≤0.4, the single-phase solid solution of wolframite structure was found. For 0.6≤x≤0.7, the ceramics formed a single-phase solid solution of ixiolite structure. And when x=0.8, the mixture of two solid solution phases based on the ixiolite and rutile structures was obtained. The microwave dielectric properties of specimens were changed with the crystal structural transitions. Moreover, with the help of TiO2, τf value of the 0.3ZnZrNb2O8−0.7TiO2 ceramic was adjusted to near zero of −2.4 ppm/°C, accompanied with excellent microwave dielectric properties of εr~41.4, Q×f~38,500 GHz. This constitutes a very promising material for microwave applications.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Letters - Volume 171, 15 May 2016, Pages 129-132
نویسندگان
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