Results 41 to 50 of about 324,033 (358)

Hot-pressed transparent PLZT ceramics from low cost chemical processing

Materials Research, 2001
Lanthanum-modified lead zirconate titanate (PLZT) ceramics were obtained with high transmittance in the visible range by a combination of an inexpensive chemical processing and hot pressing.
I.A. Santos, C. Endo, A.L. Zanin, M.H. Lente, J.A. Eiras, D. Garcia   +5 more
doaj   +1 more source

Aging of poled ferroelectric ceramics due to relaxation of random depolarization fields by space-charge accumulation near grain boundaries

, 2009
Migration of charged point defects triggered by the local random depolarization field is shown to plausibly explain aging of poled ferroelectric ceramics providing reasonable time and acceptor concentration dependences of the emerging internal bias field.
D. M. Smyth, G. Arlt, H. Kungl, H. Thomann, J. Glaum, K. Carl, K. Okazaki, K. Okazaki, K. Okazaki, L. D. Landau, M. J. Hoffmann, O. Hirsch, S. Takahashi, T. Granzow, Yu. A. Genenko   +14 more
core   +1 more source

Controlling internal barrier in low loss BaTiO3 supercapacitors [PDF]

, 2009
Supercapacitor behavior has been reported in a number of oxides including reduced BaTiO3 ferroelectric ceramics. These so-called giant properties are however not easily controlled. We show here that the continuous coating of individual BaTiO3 grains by a
C. Elissalde, C. Estournès, M. Maglione, Maglione M., S. Mornet, U-C. Chung, Yoon D. H.   +6 more
core   +4 more sources

Ultrahigh Piezoelectricity in Truss‐Based Ferroelectric Ceramics Metamaterials

Advanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
By leveraging the unique combination of polarization direction and loading state, ultrahigh piezoelectricity is achieved through careful tuning of the relative density and scaling ratio in truss‐based ferroelectric metamaterials. This approach enables the simultaneous realization of extremely high piezoelectric constants and ultralow dielectric ...
Jiahao Shi, Kang Ju, Haoyu Chen, Valérie Orsat, Agus P. Sasmito, Ali Ahmadi, Abdolhamid Akbarzadeh   +6 more
wiley   +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

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

Regulating the Interphase Strain in High‐Entropy Oxide Thin Films – An Approach to Attaining Giant Energy Storage Capability under Moderate Electric Fields

Advanced Functional Materials, EarlyView.
This work demonstrates an interphase strain engineering strategy to regulate capacitive energy storage performance in high‐entropy oxide thin films. Through introducing pyrochlore nanocolumns, the polarization response of perovskite unit cells is strengthened, yielding recoverable energy densities up to 93 J cm−3 with an efficiency of 83% under ...
Hao Luo, Yunlong Sun, Haotian Wen, Richard Webster, Yasuhiro Sakamoto, Zizheng Song, Yating Ran, Chenlu Jiang, Siyuan Zhang, Zibin Chen, Shery L. Y. Chang, Danyang Wang   +11 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

Transparent ferroelectric glass–ceramics for wastewater treatment by piezocatalysis

Communications Materials, 2020
In piezocatalysis the polarization field found in piezoelectric materials enables and enhances catalytic redox reactions. Here, we explore piezocatalytic dye degradation through transparent glass–ceramics containing piezoelectric crystals.
Gurpreet Singh, Moolchand Sharma, R. Vaish   +2 more
semanticscholar   +1 more source

Optimizing (1‐x) BiFeO3‐xCaTiO3 Perovskites: A Pathway to Efficient Flexible Energy Storage

Advanced Functional Materials, EarlyView.
Perovskite materials, like BFO CTO, are popular due to their high conductivity, low cost, and wide availability. In this work a symmetric electrochemical cell based on BFO‐CTO shows a charge of 3.356 C.cm⁻2, giving a specific capacitance of 2.79 mF.cm⁻2 at 1 mV.s⁻2.
Febin Paul, Shahina Shareef, Eric Kumi Barimah, Mustehsan Beg, Keng Goh, Gin Jose, Zhilun Lu, Libu Manjakkal   +7 more
wiley   +1 more source