کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1621009 | 1516397 | 2009 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Aging-induced, defect-mediated double ferroelectric hysteresis loops and large recoverable electrostrains in Mn-doped orthorhombic KNbO3-based ceramics
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Double ferroelectric hysteresis (P–E) loops and large recoverable electrostrains of >0.13% at 5 kV/mm are observed in aged Mn-doped orthorhombic KNbO3-based [K(Nb0.90Ta0.10)O3] lead-free ceramics over a wide temperature range of 25–140 °C. The observations are found to have striking similarities to tetragonal ferroelectrics, besides following a point defect-mediated reversible domain switching mechanism of aging driven by a symmetry-conforming short-range ordering (SC-SRO) of point defects. Such aging effects, being insensitive to crystal structure and constituent ionic species, provide a useful way to enhance electromechanical properties of lead-free ferroelectric material systems.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 480, Issue 2, 8 July 2009, Pages L29–L32
Journal: Journal of Alloys and Compounds - Volume 480, Issue 2, 8 July 2009, Pages L29–L32
نویسندگان
Zuyong Feng, Siu Wing Or,