کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7888004 | 1509794 | 2018 | 16 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of MgO addition on the microstructure and dielectric properties of BaTiO3 ceramics
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
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چکیده انگلیسی
MgO-doped BaTiO3 (BaTiO3/MgO) ceramics were prepared by a solid-state sintering method. The effects of MgO doping on the dielectric properties of BaTiO3/MgO were investigated in terms of its microstructural development. The BaTiO3/MgO was characterized by scanning electron microscopy, transmission electron microscopy, Raman spectroscopy, and x-ray powder diffraction. Results show that grain growth of the BaTiO3/MgO during sintering was inhibited by adding MgO at least 0.5Â mol%. It resulted in a high resistance of the BaTiO3/MgO sintered at high temperature. The BaTiO3/MgO possessed a broad temperature stability and met Electronic Industries Association (EIA) Ã7R specification. The improved dielectric properties of the BaTiO3/MgO are attributed to the decreased tetragonality of BaTiO3 lattice due to Mg2+ substitute for Ti4+.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 44, Issue 4, March 2018, Pages 3531-3535
Journal: Ceramics International - Volume 44, Issue 4, March 2018, Pages 3531-3535
نویسندگان
Yi Tsung Lin, Shih Fu Ou, Ming Horng Lin, Yu Ru Song,