کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10638312 | 995415 | 2005 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Synthesis and piezoelectric and ferroelectric properties of (Na0.5Bi0.5)1âxBaxTiO3 ceramics
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

چکیده انگلیسی
(Na0.5Bi0.5)1âxBaxTiO3 powders were synthesized by a citrate method, and the piezoelectric and ferroelectric properties of the ceramics were investigated. The results indicate that the citrate method is an advantageous alternative route to the conventional method in producing (Na0.5Bi0.5)1âxBaxTiO3 ceramics. Homogeneous and fine powders with a pure perovskite structure were derived from precursor solutions with a mole ratio of citric acid to total metal cation content (C/M) of 1.25 by calcining at 600 °C for 1 h. The ceramics made by the citrate method exhibit superior piezoelectric properties near the rhombohedral-tetragonal morphotropic phase boundary. The piezoelectric constant (d33) and electromechanical coupling factor (kp) attain maximum values of d33 = 180 pC Nâ1 and kp = 0.28 at x = 0.06, corresponding to a relatively large remanent polarization of Pr = 37.1 μC cmâ2 and a relatively low coercive field of Ec = 42.7 kV cmâ1.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Chemistry and Physics - Volume 90, Issue 1, 15 March 2005, Pages 111-115
Journal: Materials Chemistry and Physics - Volume 90, Issue 1, 15 March 2005, Pages 111-115
نویسندگان
Qing Xu, Shutao Chen, Wen Chen, Sujuan Wu, Jing Zhou, Huajun Sun, Yueming Li,