Results 21 to 30 of about 33,110 (327)

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

open access: yesJournal 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   +4 more
doaj   +1 more source

Polarization reversal via a transient relaxor state in nonergodic relaxors near freezing temperature

open access: yesJournal of Materiomics, 2019
Among the unresolved issues in the study of relaxor ferroelectrics is the role of freezing temperature, across which the dynamics of polarization reversal in relaxor ferroelectrics changes.
Chang-Hyo Hong   +4 more
doaj   +1 more source

Advances in the Growth and Characterization of Relaxor-PT-Based Ferroelectric Single Crystals

open access: yesCrystals, 2014
Compared to Pb(Zr1−xTix)O3 (PZT) polycrystalline ceramics, relaxor-PT single crystals offer significantly improved performance with extremely high electromechanical coupling and piezoelectric coefficients, making them promising materials for ...
Jun Luo, Shujun Zhang
doaj   +1 more source

Temperature evolution of diffuse scattering in Sr0.6Ba0.4Nb2O6 single crystal in the relaxor state

open access: yesSt. Petersburg Polytechnical University Journal: Physics and Mathematics, 2020
Temperature dependences of diffuse scattering of synchrotron radiation on model relaxor single crystal Sr0.6Ba0.4Nb2O6 have been studied in the temperature interval 90 – 290 K in the vicinities of lattice points (3 3 2), (4 1 2) and (0 0 2) in the ...
Vanina Polina   +4 more
doaj   +1 more source

Relaxor-PT Single Crystal Piezoelectric Sensors

open access: yesCrystals, 2014
Relaxor-PbTiO3 piezoelectric single crystals have been widely used in a broad range of electromechanical devices, including piezoelectric sensors, actuators, and transducers.
Xiaoning Jiang, Jinwook Kim, Kyugrim Kim
doaj   +1 more source

Investigations on Fe-doped strontium barium niobate, single phase ferroelectric and magnetodielectric compounds [PDF]

open access: yesJournal of Advanced Dielectrics, 2015
To understand possible interaction between magnetic and electric order parameters of Fe-doped SrxBa1-xNb2O6 (SBN), Fe-doped Sr0.5Ba0.5Nb2O6 (SBN50) and Sr0.4Ba0.6Nb2O6 (SBN40) are synthesized and investigated.
S. H. Kshirsagar   +4 more
doaj   +1 more source

Random electric field instabilities of relaxor ferroelectrics

open access: yesnpj Quantum Materials, 2017
Complex oxides: A random field state in a relaxor ferroelectric A microscopic model shows how compositional disorder in the form of quenched random electric fields acting in concert with dipolar interactions prohibit long-range ordering in relaxor ...
José R. Arce-Gamboa   +1 more
doaj   +1 more source

Ferroelectric-to-relaxor crossover in Sb doped PLZT x/52/48 (2 ≤ x ≤ 16) piezoelectric ceramics

open access: yesJournal of Asian Ceramic Societies, 2014
Dielectric behavior and diffuse phase transition have been investigated in Sb doped lead lanthanum zirconate titanate (PLZT) ceramics to understand the role of La and Sb in ferroelectric-to-relaxor crossover.
Sheng Tong, Zhiyuan Ling
doaj   +1 more source

Anelastic relaxor behavior of Pb(Mg1/3Nb2/3)O3 [PDF]

open access: yes, 2013
Elastic storage modulus and loss of relaxor lead magnesium niobate ceramics, Pb(Mg1/3Nb2/3)O3, have been measured with dynamic mechanical analyzer in single cantilever mode in the temperature range from 170 K to 320 K and at frequencies from 0.1 Hz to 50
Damjanovic, Dragan, Ursic, Hana
core   +2 more sources

Evolution of dielectric and ferroelectric relaxor states in Al3+-doped BaTiO3

open access: yesAIP Advances, 2015
In ferroelectric BaTiO3, we report the evolution of the Dielectric Relaxor and Ferroelectric Relaxor states as a function of B-site doped Al3+ concentration. The relaxor states occur after the paraelectric-ferroelectric phase transition upon cooling. Two
K. Vani, Viswanathan Kumar
doaj   +1 more source

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