کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1532027 1512021 2006 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
High electrical properties of W-additive Mn-modified PZT–PMS–PZN ceramics for high power piezoelectric transformers
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
High electrical properties of W-additive Mn-modified PZT–PMS–PZN ceramics for high power piezoelectric transformers
چکیده انگلیسی

The ceramics were prepared successfully by the addition of WO3 to the Mn-modified Pb(Zr0.52Ti0.48)O3–Pb(Mn1/3Sb2/3)O3–Pb(Zn1/3Nb2/3)O3 (PZT–PMS–PZN) for high power piezoelectric transformers application. XRD analysis indicated that the ceramics were mainly composed of a tetragonal phase in the range of 0–1.0 wt.% WO3 addition. The grain size of the ceramics significantly decreased from 10.0 to 2.9 μm by addition of WO3. Moreover, the addition of WO3 promoted densification of the ceramics and increased mechanical quality factor (Qm), planar coupling factor (Kp) and piezoelectric constant (d33) kept high values, whereas, dielectric loss (tan δ) was low. Δf (=fa − fr) slightly changed when WO3 addition was above 0.5 wt.%. The ceramics with 0.6 wt.% WO3 addition, sintered at 1150 °C showed the optimized piezoelectric and dielectric properties with Qm of 1852, Kp of 0.58, d33 of 243 pC/N and tan δ of 0.0050. The ceramics are promising candidates for high power piezoelectric transformers application.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: B - Volume 130, Issues 1–3, 15 June 2006, Pages 288–294
نویسندگان
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