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Influence of lanthanides (Ln = La, Nd, and Y) in [Ba0.95Ln0.05] [Zr0.25Ti0.75]O3 lead-free piezoelectric solid solutions
Ferroelectrics ( IF 0.6 ) Pub Date : 2020-01-25 , DOI: 10.1080/00150193.2019.1691386
Rajesh Narayana Perumal 1, 2 , Venkatraj Athikesavan 1, 2
Affiliation  

Abstract Influence of lanthanides (Ln = La, Nd, and Y) in [Ba0.95Ln0.05] [Zr0.25 Ti0.75]O3 ceramics, synthesized by high-temperature solid-state reaction technique. Investigation on the phase structure, ferroelectric, piezoelectric and energy storage performance of BZT-Ln ceramics was done. X-ray diffraction studies revealed that the specimen belongs to cubic phases with the space group of Pm3m. Maximum ferroelectric properties at room temperature were observed an electric field of 65 kV/cm. A maximum energy storage density of 1.03 J/cm3 was achieved at 65 kV/cm for BZT-Nd. The piezoelectric (d33) and piezoelectric voltage (g33) coefficients exhibited a maximum of 21 pC/N and 9.11 (mV.m/N) respectively when Nd3+ substituted with BZT. The dielectric properties of BZT-Nd showed maximum dielectric constant (εr) ∼2148 at 573 K. Thus, the obtained good electrical properties of the ceramics enhance its potential use in sensor and energy storage applications.

中文翻译:

[Ba0.95Ln0.05] [Zr0.25Ti0.75]O3无铅压电固溶体中镧系元素(Ln = La、Nd和Y)的影响

摘要 镧系元素(Ln = La、Nd 和 Y)对通过高温固相反应技术合成的 [Ba0.95Ln0.05] [Zr0.25 Ti0.75]O3 陶瓷的影响。研究了BZT-Ln陶瓷的相结构、铁电、压电和储能性能。X 射线衍射研究表明,该样品属于立方相,空间群为 Pm3m。在室温下观察到最大铁电特性,电场为 65 kV/cm。BZT-Nd 在 65 kV/cm 下实现了 1.03 J/cm3 的最大储能密度。当 Nd3+ 被 BZT 替代时,压电 (d33) 和压电电压 (g33) 系数分别表现出最大值 21 pC/N 和 9.11 (mV.m/N)。BZT-Nd 的介电性能在 573 K 时显示出最大介电常数 (εr) ∼2148。因此,
更新日期:2020-01-25
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