کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1648727 | 1007563 | 2010 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Giant strain in Nb-doped Bi0.5(Na0.82K0.18)0.5TiO3 lead-free electromechanical ceramics
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The effect of Nb substitution on the crystal structure, ferroelectric, and electric field induced strain properties of Bi0.5(Na82K0.18)0.5TiO3 (BNKT) ceramics has been investigated. The coexistence of rhombohedral and tetragonal phases was found in undoped BNKT ceramics, however, Nb doping induced a phase transition to a pseudocubic phase with high electrostriction coefficients. When 3 mol% Nb was substituted on Ti ions, the electric field induced strain was markedly enhanced up to Smax/Emax = 641 pm/V, which is higher than those previously reported on non-textured lead-free electromechanical ceramics.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Letters - Volume 64, Issue 20, 31 October 2010, Pages 2219–2222
Journal: Materials Letters - Volume 64, Issue 20, 31 October 2010, Pages 2219–2222
نویسندگان
Ky-Nam Pham, Ali Hussain, Chang Won Ahn, Won Kim Ill, Soon Jong Jeong, Jae-Shin Lee,