Results 41 to 50 of about 27,906 (302)

Absence of ferroelectricity in BiMnO3 ceramics

, 2012
We performed factor-group analysis of all phonons in possible monoclinic C2/c and C2 structures of BiMnO3 and compared it with our experimental infrared and Raman spectra.
Belik, A. A., Borodavka, F., Goian, V., Kamba, S., Nuzhnyy, D., Savinov, M., Vanek, P.   +6 more
core   +1 more source

Correlations between Elastic, Calorimetric, and Polar Properties of Ferroelectric PbSc0.5Ta0.5O3 (PST) [PDF]

, 2019
Calorimetric, elastic, and polar properties of ferrolectric lead scandium tantalate PbSc0.5Ta0.5O3 (PST) with 65% cation order have been investigated in the vicinity of the paraelectric-ferroelectric transition at Ttrans = 295K.
Ekhard K. H. Salje, Francisco Javier Romero, Gan Linyu, José-María Martín-Olalla, Levanyuk A., María Carmen Gallardo, Oktay Aktas, Salje E., Victorino Franco, Yumei Zhou   +9 more
core   +1 more source

Direct measurement of electrocaloric effect in lead-free Ba(SnxTi1-x)O3 ceramics [PDF]

, 2017
In this study, we report on investigation of the electrocaloric (EC) effect in lead-free Ba(SnxTi1-x)O3 (BSnT) ceramics with compositions in the range of 0.08 ≤ x ≤ 0.15 by the direct measurement method using a differential scanning calorimeter.
Dkhil, Brahim, Liu, Yang, Luo, Zheng-Dong, Lupascu, Doru C., Sanlialp, Mehmet, Shvartsman, Vladimir V., Wei, Xianzhu   +6 more
core   +3 more sources

Functional Materials for Environmental Energy Harvesting in Smart Agriculture via Triboelectric Nanogenerators

Advanced Functional Materials, EarlyView.
This review explores functional and responsive materials for triboelectric nanogenerators (TENGs) in sustainable smart agriculture. It examines how particulate contamination and dirt affect charge transfer and efficiency. Environmental challenges and strategies to enhance durability and responsiveness are outlined, including active functional layers ...
Rafael R. A. Silva, Giulio Fatti, Emanuel Carlos, Guilherme Ferreira, Sumita Goswami, Suman Nandy, Luiz H. C. Mattoso, Elvira Fortunato, Caio G. Otoni, Rodrigo Martins   +9 more
wiley   +1 more source

Energy storage optimization of ferroelectric ceramics during phase-transition process of amorphous/nanocrystalline and polycrystalline by using a phase-field model for dielectric breakdown

Journal of Advanced Dielectrics
Ferroelectric ceramics have the potential to be widely applied in the modern industry and military power systems due to their ultrafast charging/discharging speed and high energy density.
Suilong Huang, Jianwen Chen, Zhen Su, Xiucai Wang, Wenbo Zhu, Wenjun Chen, Xinmei Yu, Peng Xiao   +7 more
doaj   +1 more source

Dielectric Anisotropy in Partially Grain-Oriented Bi2VO5.5 Ceramics

Active and Passive Electronic Components, 1995
Ceramics obtained from quenching melts of prereacted polycrystalline Bi2V5.5 exhibit grain orientation (~ 55%). Microstructural studies carried out using scanning electron microscopy (SEM) on subsequently annealed ceramics show ferroelectric domains ...
K. V. R. Prasad, K. B. R. Varma
doaj   +1 more source

Quantitative evaluation of the piezoelectric response of unpoled ferroelectric ceramics from elastic and dielectric measurements: tetragonal BaTiO$_3$

, 2017
A method for evaluating the piezoelectric response of unpoled ferroelectric ceramics from elastic and dielectric measurements is proposed and tested on BaTiO$_3$.
Cordero, F.
core   +1 more source

Growth of Millimeter‐Sized BaTaO2N Single Crystals by an NH3‐Assisted BaCl2 Flux Method

Advanced Functional Materials, EarlyView.
Millimeter‐sized BaTaO2N single crystals are successfully grown from a BaCl2 flux under NH3 flow. Their comprehensive characterization, including dielectric properties, is demonstrated, and the possible growth mechanisms are discussed. Abstract Perovskite‐type oxynitrides have attracted considerable attention due to their excellent photocatalytic ...
Ginji Harada, Mirabbos Hojamberdiev, Hajime Wagata   +2 more
wiley   +1 more source

Nanotexture influence of BaTiO3 particles on piezoelectric behaviour of PA 11/BaTiO3 nanocomposites [PDF]

, 2010
The piezoelectric activity of a hybrid ferroelectric nanocomposite, i.e. polyamide 11/barium titanate (BT), has been investigated for different loadings of BT particles.
Capsal, J.-F., Dandurand, Jany, Dantras, Eric, Lacabanne, Colette, Laffont, Lydia, Pousserot, Chloé   +5 more
core   +1 more source

Electroactive Liquid Crystal Elastomers as Soft Actuators

Advanced Functional Materials, EarlyView.
Electroactive liquid crystal elastomers (eLCEs) can be actuated via electromechanical, electrochemical, or electrothermal effects. a) Electromechanical effects include Maxwell stress, electrostriction, and the electroclinic effect. b) Electrochemical effects arise from electrode redox reactions.
Yakui Deng, Min‐Hui Li
wiley   +1 more source