کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5448438 | 1511776 | 2017 | 29 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Sr doped BiMO3 (MÂ =Â Mn, Fe, Y) perovskites: Structure correlated thermal and electrical properties
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Sr doped BiMO3 (MÂ =Â Mn, Fe, Y) perovskites: Structure correlated thermal and electrical properties Sr doped BiMO3 (MÂ =Â Mn, Fe, Y) perovskites: Structure correlated thermal and electrical properties](/preview/png/5448438.png)
چکیده انگلیسی
Sr2+ substituted BiMnO3âδ (BSM), BiFeO3âδ (BSF) and BiYO3âδ (BSY) perovskites structured samples have been investigated for their structural, thermal and electrical properties. These samples are characterized by X-ray diffraction, X-ray photoelectron spectroscopy (XPS), iodometric titration, Raman spectroscopy, thermogravimetric analysis (TGA) and conductivity. Rietveld refinement confirms that BSY sample has cubic (Fm-3m) symmetry with limited solid solubility of Sr2+ as compared to tetragonal symmetry (p4mm) of BSM and BSF samples. X-ray photoelectron spectroscopy study confirms the presence of Mn4+ and Fe4+ content in BSM and BSF samples. The amount of Mn3+, Fe4+ and oxygen vacancies in these systems are calculated by iodometric titration. The highest oxygen vacancies are found in BSF sample. The BSM system exhibit the highest conductivity followed by BSF and BSY samples due to the presence of Mn4+ content and moderate oxygen vacancies in this particular sample.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Chemistry and Physics - Volume 187, 1 February 2017, Pages 96-103
Journal: Materials Chemistry and Physics - Volume 187, 1 February 2017, Pages 96-103
نویسندگان
Samita Thakur, K. Singh, O.P. Pandey,