کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1606898 | 1516230 | 2016 | 5 صفحه PDF | دانلود رایگان |
• Develop a new low-cost Bi-based high temperature piezoceramics with Tc∼580 °C.
• La can drive the changes of phase structure and electrical characterization.
• La-driven compositions exhibit improved electrical properties.
• Thermal stability is closely related to domain type of ferroelectric ceramics.
La-doped 0.3(Bi1−xLax)(Zn0.5Ti0.5)O3-0.7PbTiO3 (BLZT-PT) ceramics with 0 ≤ x ≤ 0.30 was studied. La doping reduced the tetragonality/polar distortion, shifted Curie temperature, changed thermal stability and improved ferro-piezoelectric properties of the ceramics. The sample with optimal composition at x = 0.055 exhibited high Curie temperature of about 580 °C with good piezoelectric properties. This makes BLZT-PT a promising candidate for next-generation of piezoelectric ceramics at high-temperatures.
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Journal: Journal of Alloys and Compounds - Volume 663, 5 April 2016, Pages 41–45