کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10629370 991062 2015 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Low firing temperature zinc molybdate ceramics for dielectric and insulation applications
ترجمه فارسی عنوان
سرامیک مولیبدان روی دمای پایین برای کاربردهای دی الکتریک و عایق
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
چکیده انگلیسی
Low temperature firing, non-stoichiometric zinc molybdate (11ZnO-10MoO3) dielectric ceramics (NSZM) were prepared by the mixed oxide route with additions of B2O3. All products were sintered at 850-950 °C to over 96% theoretical density with co-existence of ZnMoO4 and Zn3Mo2O9 phases. The addition of B2O3 reduced the proportion of Zn3Mo2O9 secondary phase. The relative permittivities of NSZM samples ranged from 9.2 to 11.1; the breakdown strength was between 14.3 and 17.6 kV/mm. Impedance spectroscopy suggested that charge transport in the grain boundary region governed the breakdown strength. NSZM prepared with 1.0 wt% B2O3 exhibited a relative permittivity of 11.1, dielectric strength of 17.6 kV/mm, thermal expansion coefficient of 4.7 ppm/K and thermal conductivity of 1.3 W/(m K). The results indicate that NSZM is a promising candidate for dielectric and high temperature insulation applications.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the European Ceramic Society - Volume 35, Issue 11, October 2015, Pages 3033-3042
نویسندگان
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