کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10155373 | 1666349 | 2018 | 15 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Microwave dielectric ceramics in (Mg1/3Sb2/3)O2-ZrO2-TiO2 system with near zero Ïf and low loss in a very wide range
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A series of (ZrTi)1-x(Mg1/3Sb2/3)2xO4 (0.04â¯â¤â¯xâ¯â¤â¯0.36) ceramics were successfully synthesized through the conventional solid-state processing. Appropriate content of CuO was added as sintering aids to promote the density of ceramics. The XRD analysis revealed that the main crystalline phase of ceramics sintered at optimal temperature belonged to α-PbO2-type structure. Raman spectroscopy and far infrared reflectivity (FIR) spectra were employed to study the phonon modes of ceramics, which explained the relationship between microwave dielectric properties and structure. It is interesting that the Ïf are near-zero (+6.6 ~ â4.6â¯ppm/°C) and meanwhile the QÃf are relatively high (29,000-41,800â¯GHz) for samples with x in a very wide range of 0.10-0.36. In this range, their dielectric constants (εr) can be adjustable from 35.4 to 24.4. The results demonstrated this ceramic system is a potential candidate for microwave dielectric applications requiring an adjustable dielectric constants and near zero Ïf.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 44, Issue 16, November 2018, Pages 19165-19170
Journal: Ceramics International - Volume 44, Issue 16, November 2018, Pages 19165-19170
نویسندگان
Hao Shi, Qiuyun Fu, Geng Wang, Lu Zhang, Zhiping Zheng, Wei Luo, Fan Tian, Chaohong Wang, Tao Yang,