Results 41 to 50 of about 292,067 (328)

Connecting the Multiscale Structure with Macroscopic Response of Relaxor Ferroelectrics

Advanced Functional Materials, 2020
Lead‐based relaxor ferroelectrics are characterized by outstanding piezoelectric and dielectric properties, making them useful in a wide range of applications.
M. Otoničar, A. Bradeško, Lovro Fulanović, T. Kos, H. Uršič, A. Benčan, M. Cabral, A. Henriques, Jacob L. Jones, L. Riemer, Dragan Damjanovic, G. Dražič, B. Malič, T. Rojac   +13 more
semanticscholar   +1 more source

NMR and the local structure of relaxors [PDF]

Science of Sintering, 2002
The relaxor transition in cubic perovskite relaxors (PMN, PSN and PST) and tungsten bronze relaxor (SBN) has been studied by NMR. The observed spectra are composed of a narrow -1/2 « 1/2 central transition superimposed on a broad background due to ...
Blinc R., Zalar B., Gregorovič Alan
doaj   +1 more source

Time-Resolved Nanobeam X-ray Diffraction of a Relaxor Ferroelectric Single Crystal under an Alternating Electric Field

Crystals, 2021
Lead-containing relaxor ferroelectrics show enormous piezoelectric capabilities relating to their heterogeneous structures. Time-resolved nanobeam X-ray diffraction reveals the time and position dependences of the local lattice strain on a relaxor ...
Shinobu Aoyagi, Ayumi Aoyagi, Hiroaki Takeda, Hitoshi Osawa, Kazushi Sumitani, Yasuhiko Imai, Shigeru Kimura   +6 more
doaj   +1 more source

Enhanced strain and electrostrictive properties in lead-free BNT-based ceramics via rare earth doping

Journal of Materiomics, 2022
Bi0.5Na0.5TiO3 (BNT)-based ceramics are one of the most promising lead-free ferroelectrics due to their high strain property. Compared to other chemical modifications, rare earth ions doping provides significant possibility to optimize the strain ...
Anping Deng, Jiagang Wu
doaj   +1 more source

Theoretical prediction of electrocaloric effect based on non-linear behaviors of dielectric permittivity under temperature and electric fields

AIP Advances, 2015
The electrocaloric (EC) effect has been paid great attentions recently for applications on cooling or electricity generation. However, the directly commercial measurement equipment for the effect is still unavailable.
Hongbo Liu, Xue Yang
doaj   +1 more source

High performance relaxor ferroelectric textured ceramics for electrocaloric refrigeration. [PDF]

Nat Commun
Li X, Li J, Li Y, Liu X, Yang S, Wu J, Hou D, Zhang J, Wu H, Zhang Y, Ding X, Sun J, Zhang S, Du H, Li F.   +14 more
europepmc   +3 more sources

Ferroelectricity and Self-Polarization in Ultrathin Relaxor Ferroelectric Films [PDF]

Scientific Reports, 2016
AbstractWe report ferroelectricity and self-polarization in the (001) oriented ultrathin relaxor ferroelectric PMN-PT films grown on Nb-SrTiO3, SrRuO3 and La0.7Sr0.3MnO3, respectively. Resistance-voltage measurements and AC impedance analysis suggest that at high temperatures Schottky depletion width in a 4 nm thick PMN-PT film deposited on Nb-SrTiO3 ...
Peixian Miao, Yonggang Zhao, Nengneng Luo, Diyang Zhao, Aitian Chen, Zhong Sun, Meiqi Guo, Meihong Zhu, Huiyun Zhang, Qiang Li   +9 more
openaire   +2 more sources

Understanding the large strain behavior in the lead-free doped Bi1/2(Na0.78K0.22)1/2TiO3–BiMg1/2Ti1/2O3 (BNKT-BMT) piezoelectric system

AIP Advances, 2020
The ternary solid solution Bi1/2(Na0.78K0.22)1/2TiO3-BiMg1/2Ti1/2O3 (BNKT-BMT) was investigated for high-strain actuator applications. This study of the BNKT-BMT system looked at the macroscopic properties as a function of BMT doping, temperature, and ...
Nicholas Mostovych, Sung Sik Won, Ill Won Kim, Seung-Hyun Kim, Angus I. Kingon   +4 more
doaj   +1 more source

An Overview of Linear Dielectric Polymers and Their Nanocomposites for Energy Storage

Molecules, 2021
As one of the most important energy storage devices, dielectric capacitors have attracted increasing attention because of their ultrahigh power density, which allows them to play a critical role in many high-power electrical systems.
Lvye Dou, Yuan-Hua Lin, Ce-Wen Nan
doaj   +1 more source

Temperature-dependent energy storage characterization of Pb-free relaxor ferroelectrics [PDF]

Journal of Advanced Dielectrics, 2020
The energy storage properties of (1−x)Bi0.5Na0.5TiO3–xBaTiO3(0≤x≤0.08) (BNT–BT) ceramics obtained via sol–gel method are determined from the polarization versus electric field (P–E) loops at various temperatures. The energy storage densities are observed
Sarir Uddin, Guang-Ping Zheng, Asif Khan, Muhammad Riaz Khan, Banaras Khan   +4 more
doaj   +1 more source