کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10639963 | 995862 | 2005 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Study on PSN-PZN-PZT quaternary piezoelectric 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
مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Pb(Sn1/3Nb2/3)O3-Pb(Zn1/3Nb2/3)O3-PbZrO3-PbTiO3 quaternary piezoelectric ceramics with varying Zr/Ti ratio, which locate in the vicinity of the morphotropic phase boundary (MPB), were prepared by conventional solid solution method. The phase structure, the piezoelectric and dielectric properties of the system were investigated. X-ray diffraction patterns indicated that the MPB of the tetragonal and rhombohedral phase lay in a broad composition region. The properties optimized for high-power applications such as transformers, ultrasonic motors, and electromechanical transducers were obtained with Zr/Ti = 44/44 at calcination temperature of 960 °C and sintering temperature of 1260 °C. The main parameters: ε33T/ε0=1665, d33 = 314 pC/N, Kp = 57.8%, Qm = 2614, tan δ = 0.4%, Tc = 279 °C. The temperature coefficient of resonant frequency shifted from plus (+) into minus (â) value with increasing Zr/Ti ratio and obtained a minimum value (Îfr/fr25 °C = 0.67%) at Zr/Ti = 44/44, which reflected the transition from tetragonal phase to rhombohedral phase.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: B - Volume 123, Issue 3, 25 November 2005, Pages 203-210
Journal: Materials Science and Engineering: B - Volume 123, Issue 3, 25 November 2005, Pages 203-210
نویسندگان
Shasha Zhao, Hao Wu, Qingchi Sun,