کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5461090 | 1516184 | 2017 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
BiFeO3-modified (K, Na, Li) (Nb, Sb)O3 lead free ceramics with high Curie temperature
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
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چکیده انگلیسی
(K,Na)NbO3-based lead-free piezoelectric ceramics with high properties have attracted great interest because of the increasing environmental concerns. In this work, a potential lead-free candidate (1-x) (K0.45Na0.55)0.96Li0.04Nb1-ySbyO3-xBiFeO3 (KNLNSy-xBF) with rhombohedral-tetragonal (R-T) phase boundary was systematically investigated. Benefiting from the R-T phase boundary, the enhanced electrical properties (e.g., d33â¼365 pC/N, kpâ¼0.503, εr â¼1689 and tan δâ¼0.03) as well as high Curie temperature (Tcâ¼370 °C) were obtained in the composition of y = 0.035, almost comparable to that of PZT5A (Navy II) piezoelectric ceramics. In addition, a good thermal stability of d33 (Ta = 365 °C, d33 â¥Â 280 pC/N) was found in the ceramics with y = 0.035. We believe that the BiFeO3-modified (K, Na, Li) (Nb, Sb)O3 lead-free ceramics with high Curie temperature is a promising candidate for piezoelectric devices.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 710, 5 July 2017, Pages 130-137
Journal: Journal of Alloys and Compounds - Volume 710, 5 July 2017, Pages 130-137
نویسندگان
Bo Wu, Jian Ma, Wenjuan Wu, Min Chen, Yingchun Ding, Haibo Tian,