کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1641991 | 1517228 | 2015 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
High dielectric constant and good thermal stability from â55 °C to 450 °C in BaTiO3-based ceramics
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: High dielectric constant and good thermal stability from â55 °C to 450 °C in BaTiO3-based ceramics High dielectric constant and good thermal stability from â55 °C to 450 °C in BaTiO3-based ceramics](/preview/png/1641991.png)
چکیده انگلیسی
An ultrahigh-temperature X-R type dielectric material, BaTiO3-Na0.5Bi0.5TiO3-Nb2O5-ZnO-Glass with Sm2O3 addition, was successfully prepared. The effects of Sm2O3 content on the phase structure, dielectric and electric properties of ceramics were investigated. Sm ion can substitute for both Ti and Ba-sites, which leads to the decrease of spontaneous polarization and dipolar polarization. As a result, the temperature stability in εr of sample is improved obviously. The 0.2 mol% Sm2O3-doped sample shows the optimal dielectric properties (εr=2458; tan δ=1.80%; âC/C20 °C<±15%, â55 °C to 450 °C), which satisfies EIA X-R specification. This material with particular focuses on enhancing the upper temperature limit to 450 °C, while still maintaining high dielectric constant.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Letters - Volume 160, 1 December 2015, Pages 128-131
Journal: Materials Letters - Volume 160, 1 December 2015, Pages 128-131
نویسندگان
Ning Zhang, Lingxia Li, Jingyang Yu,