کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10625073 | 989613 | 2014 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Sintering behavior and microwave dielectric properties of nano zinc niobate powder
ترجمه فارسی عنوان
رفتار پخت و خواص دی الکتریک مایکروویو پودر نانوبلور نانو
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
چکیده انگلیسی
Nanosized ZnNb2O6 powders obtained by high energy ball milling (HEBM) and subsequent heat treatment were compacted and sintered into near full density ceramics using pressureless sintering. The prepared ceramic samples were characterized by field emission scanning electron microscopy, X-ray diffraction, and microwave dielectrical property measurements. All samples prepared at sintering temperatures ranging from 975 to 1100 °C, exhibit a single columbite phase and their relative densities range from ~87% to ~99%. The variation trend of permittivity and QÃf value was in accordance with variation trend of relative density. Pure columbite ZnNb2O6 ceramic sintered at 1050 °C for 5 h exhibited good microwave dielectric properties with a permittivity about 23.6, QÃf value about 72,357 GHz, and temperature coefficient of resonant frequency about â67.72 ppm/°C.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 40, Issue 9, Part A, November 2014, Pages 14463-14470
Journal: Ceramics International - Volume 40, Issue 9, Part A, November 2014, Pages 14463-14470
نویسندگان
Hadi Barzegar Bafrooei, Ehsan Taheri Nassaj, Touradj Ebadzadeh, Chunfeng Hu,