Results 61 to 70 of about 344 (153)

Morphotropic phase boundary in (1-x)Bi0.5Na0.5TiO3-xK(0.5)Na(0.5)NbO(3) lead-free piezoceramics

, 2008
The electromechanical behavior of (1-x)Bi0.5Na0.5TiO3-xK(0.5)Na(0.5)NbO(3) (BNT-KNN) lead free piezoelectric ceramics is investigated for 0
Jo, Wook, Roedel, Juergen, Granzow, Torsten, Wook Jo, Kounga, Alain Brice, Shan-Tao Zhang, Rödel, Jürgen, Zhang, Shan-Tao, Alain Brice Kounga, Jürgen Rödel, Torsten Granzow   +10 more
core   +1 more source

An Emergent Quadruple Phase Ensemble in Doped Bismuth Ferrite Thin Films Through Site and Strain Engineering

Advanced Functional Materials, Volume 34, Issue 39, September 25, 2024.
A morphotropic phase boundary comprising a coexistence of four distinct crystallographic phases is uncovered through A‐site doping and strain engineering. The various ferroelectric, polar, and nonpolar phases form a nanoscale mixture without the presence of crystallographically hard boundaries.
Jinling Zhou, Hsin‐Hui Huang, Shunsuke Kobayashi, Shintaro Yasui, Ke Wang, Eugene A. Eliseev, Anna N. Morozovska, Pu Yu, Ichiro Takeuchi, Zijian Hong, Daniel Sando, Qi Zhang, Nagarajan Valanoor   +12 more
wiley   +1 more source

Recent Advances in Piezocatalysts for Dye Degradation

Advanced Sustainable Systems, Volume 8, Issue 8, August 2024.
This review outlines the principles of piezocatalysis and introduces two primary forms of driving force in nature. The piezocatalytic materials are classified as organic and inorganic categories in this review. The techniques for improving piezocatalytic efficiency in degrading dye solutions are presented.
Lu Zhou, Linghui Meng, Haowei Jia, Yile Lu, Tianyue Liang, Yu Yuan, Chao Liu, Zekun Dong, Long Hu, Peiyuan Guan, Yingze Zhou, Mengyao Li, Tao Wan, Zhaojun Han, Dewei Chu   +14 more
wiley   +1 more source

Polar materials for photocatalytic applications: A critical review

Interdisciplinary Materials, Volume 3, Issue 4, Page 530-564, July 2024.
We review the advances, challenges, and opportunities of polar materials with the intrinsic polarization and internal electric field, broadening the light absorption spectrum, facilitating the separation of photogenerated electron–hole pairs, and enhancing the photocatalytic performance.
Xiaoqing Liu, Yu Zhang, Cong Wang, Lei Shen   +3 more
wiley   +1 more source

Toward Design Rules for Multilayer Ferroelectric Energy Storage Capacitors – A Study Based on Lead‐Free and Relaxor‐Ferroelectric/Paraelectric Multilayer Devices

Advanced Materials, Volume 36, Issue 26, June 26, 2024.
Design of multilayer capacitor according to design rules for optimizing the breakdown field and energy storage capacity in the BZT/BST multilayer system, which presents an extremely large recoverable energy‐storage density of 165.6 J cm−3 and high energy efficiency of 93% (left).
Minh D. Nguyen, Evert P. Houwman, Yorick A. Birkhölzer, Hung N. Vu, Gertjan Koster, Guus Rijnders   +5 more
wiley   +1 more source

Influence of secondary phases on ferroelectric properties of Bi0.5Na0.5TiO3 ceramics [PDF]

, 2017
The effects of secondary phases on ferroelectric properties of Bi0.5Na0.5TiO3 (BNT) have been studied. Ceramic powders were prepared by solid state reaction employing different sintering temperatures and characterized by X-ray diffraction (XRD), Scanning
Ramajo, Leandro Alfredo, Castro, Miriam Susana, Prado Espinosa, Fabiola Andrea   +2 more
core   +1 more source

Superior energy storage density and efficiency in antiferroelectric-like BNT-based ceramics via single-element phase engineering

Journal of Advanced Ceramics
Bi0.5Na0.5TiO3 (BNT) has received much attention because of its excellent dielectric properties for pulsed power systems. Most of the work has focused on inducing the relaxation behavior of BNT-based materials by doping with multiple elements, but the ...
Shuang He, Kunjie Lou, Bing Han, Shaobo Guo, Fei Cao, Chunhua Yao, Yizheng Bao, Genshui Wang   +7 more
doaj   +1 more source

High stability of properties in morphotropic phase boundary Bi0.5Na0.5TiO3-BaTiO3 piezoceramics [PDF]

, 2016
The (1-x)Bi0.5Na0.5TiO3–xBaTiO3 (BNT-xBT) system with composition at its morphotropic phase boundary (MPB) has received significant attention because of their attractive properties as lead-free piezoceramics.
Cerdeiras Montero, Elena, Mestres Vila, Lourdes, Mestres, Lourdes, García, José E., dos Santos, Valdeci B., Machado, Rodrigo, Ochoa Guerrero, Diego A., Cerdeiras, Elena, Ochoa, Diego, García García, José Eduardo   +9 more
core   +1 more source

Excellent Energy-Storage Performance in BNT-SST-LMN Lead-Free Relaxor Ferroelectric Ceramics with High Electrical Homogeneity

, 2022
Relaxor ferroelectric materials have received increasing attention in pulse power devices due to the high power density and rapid charge–discharge capability.
Ziyue Ma (14215558), Ye Zhao (39959), Chunxiao Lu (9154671), Yong Li (15029), Jianye Zhu (14215561), Qian Su (3112242), Ningning Sun (5727389), Pei Han (500548), Xihong Hao (1421977)   +8 more
core   +1 more source

Perovskite/metal (Bi0.5Na0.5TiO3-BaTiO3/Ag) lead-free composite ceramics featuring enhanced depolarization temperature

, 2023
The thermal stability of Bi$_{0.5}$Na$_{0.5}$TiO$_3$-based piezoelectrics is one of the most critical metrics for practical applications. Finite element method (FEM) calculations estimate that incorporating Ag into the perovskite 0.94Bi$_{0.5}$Na$_{0.5 ...
Yueyun Zhang, Yang Ren, Tang, Mingxue, Hui Liu, Mingxue Tang, Manuel Hinterstein, Zheng Sun, Hinterstein, Jan Manuel, Luo, Huajie, Huajie Luo, Yang, Jikun, Huang, Houbing, Jikun Yang, Sun, Zheng, Liu, Hui, Houbing Huang, Ren, Yang, Jun Chen, Chen, Jun, Zheng, Huashan, Shiyu Tang, Yao, Yonghao, Hinterstein, Manuel, Tang, Shiyu, Huashan Zheng, Yonghao Yao, Zhang, Yueyun   +26 more
core   +1 more source