کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10666480 | 1007721 | 2005 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Piezoelectric properties of Mn-doped (Na0.5Bi0.5)0.92Ba0.08TiO3 ceramics
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
Piezoelectric ceramics (Na0.5Bi0.5)0.92Ba0.08TiO3+x mol.% Mn (BNBT-Mn) with x ranging from 0 to 2.97 are synthesized by conventional solid state reaction. The sintered BNBT-Mn exhibited a single phase perovskite structure without detectable secondary phase from x=0 to x=2.6. With increasing amount of doped Mn, the Curie temperature (Tc) of BNBT-Mn decreased rapidly, piezoelectric constants d33 and kt increased promptly when x was lower than 0.56, taking the maximum value of 160Ã(10â12 C/N) and 58.5%, respectively for x=0.56, then decreased slightly with x ranging from 0.56 to 2.6, and finally decreased rapidly for x>2.6, whereas Qm showed a different trend from d33 and kt. Furthermore, kt had a relatively high value under the low poling field (Ep) for x=0.56 owing to the reduced coercive field (Ec). Possible mechanisms of the influence of Mn doping on the microstructure and piezoelectric properties are discussed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Letters - Volume 59, Issue 13, June 2005, Pages 1649-1652
Journal: Materials Letters - Volume 59, Issue 13, June 2005, Pages 1649-1652
نویسندگان
X.Y. Zhou, H.S. Gu, Y. Wang, W.Y. Li, T.S. Zhou,