کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7991774 | 1516144 | 2018 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The enhanced piezoelectric property of (Li,K,Na)(Nb,Ta)O3 lead-free ceramics induced by rare earth oxide doping
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
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چکیده انگلیسی
The ions doping engineering has already been proved to be an effective approach of adjusting the intrinsic properties of perovskite structured materials and even realizing some new functionality. The polymorphic phase transition effect was put forward to elucidate the enhanced ferroelectric and piezoelectric properties in (K,Na)NbO3-based materials. In current research, Li-Ta modified (K,Na)NbO3 lying in composition region of the coexistence structure was selected as target materials, and Ce2O3 was chose as dopant in order to reveal the effect of ion doping on the target materials. Owing to the sensitive energy state in the coexistence phase structure, an obvious phase evolution from orthorhombic to tetragonal would be brought about by the doping of Ce2O3. When the doping amount was 0.5% mol, the enhanced ferroelectric property (the remnant polarization of Prâ¯=â¯21.8â¯Î¼C/cm2), piezoelectric property (the piezoelectric coefficient of d33â¯=â¯272â¯pC/N) and field-induced property (0.13@4â¯kV/mm) could be achieved.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 750, 25 June 2018, Pages 124-129
Journal: Journal of Alloys and Compounds - Volume 750, 25 June 2018, Pages 124-129
نویسندگان
Rongxia Huang, Yongjie Zhao, Dong Yan,