کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1594635 | 1515669 | 2009 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Evolution of polar order in Ba(Ti1âxSnx)O3 ceramics
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The ferroelectric hysteresis loops of Ba(Ti0.85Sn0.15)O3 and Ba(Ti0.75Sn0.25)O3 solid solution ceramics covering the temperature Tm of a dielectric permittivity peak were investigated. At temperatures â¼100 K lower than their respective Tm, the two compositions present clear ferroelectricity. Comparing with the parent ferroelectric BaTiO3, the tiny hysteresis loop of both Ba(Ti0.85Sn0.15)O3 and Ba(Ti0.75Sn0.25)O3 ceramics at temperatures above Tm reveals the existence of polar order regions or microdomains. The dielectric properties of the two solid solutions are different: the former shows the character of diffuse ferroelectric phase transition, while the latter displays the feature of relaxor ferroelectrics. According to their ferroelectric properties, however, Ba(Ti0.85Sn0.15)O3 and Ba(Ti0.75Sn0.25)O3 compositions exhibit the diffuse transition from low-temperature ferroelectric domains to polar nanoregions during the ε(T) peak area. A difference between the two compositions is that the diffuse transition of the former takes place in a much narrower temperature range than that of the latter.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Communications - Volume 149, Issues 43â44, November 2009, Pages 1877-1880
Journal: Solid State Communications - Volume 149, Issues 43â44, November 2009, Pages 1877-1880
نویسندگان
Le Wang, Xiaoli Wang, Bo Li,