کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10620997 | 988763 | 2006 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Structure and dielectric behavior of Pb(Mg1/3Nb2/3)O3-Pb(Ni1/3Nb2/3)O3-Pb(Zn1/3Nb2/3)O3-PbTiO3 ferroelectric ceramics near the morphotropic phase boundary
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Pb(Mg1/3Nb2/3)O3-Pb(Ni1/3Nb2/3)O3-Pb(Zn1/3Nb2/3)O3-PbTiO3 (PMN-PNN-PZN-PT) ceramics with compositions of (1 â x)(0.14PZN-0.56PNN-0.30PT) â x(0.528PMN-0.132PNN-0.340PT) (x = 0.2, 0.4, 0.6, 0.8) were prepared using the conventional mixed-oxide technique. X-ray diffraction results demonstrate that all the samples lie within the morphotropic phase boundary (MPB) region in the pure perovskite structure. The temperature dependence of the dielectric constant of the ceramics has been investigated in detail. All samples are characterized by a pronounced diffuse phase transition and weak frequency dispersion, and can no longer be regarded as typical relaxors. Excellent dielectric properties have been obtained for the selected compositions. The εm value of the composition with x = 0.8 at 1 kHz reaches as high as 36,800, which implies that the quaternary compositions near the MPB merit further study.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Acta Materialia - Volume 54, Issue 5, March 2006, Pages 1343-1348
Journal: Acta Materialia - Volume 54, Issue 5, March 2006, Pages 1343-1348
نویسندگان
Jing-Song Pan, Xiao-Wen Zhang,