Results 111 to 120 of about 324,033 (358)

Grain size effects in BaTi0.90Hf0.10O3 ceramics with phase coexistence: the influence of nanostructuring and of the internal stress on the functional properties

Journal of Materials Research and Technology
The present study is focused on describing the influence of the sintering method (fast field-assisted Spark Plasma Sintering vs. conventional sintering) on the functional properties of BaTi0.90Hf0.10O3 ceramics with polymorph superposition around room ...
Elena Mirabela Soare, Cătălina-Andreea Stanciu, Roxana Elena Pătru, Vasile-Adrian Surdu, Leontin Pădurariu, Nadejda Horchidan, Adrian-Ionuţ Nicoară, Lucian Trupină, Bogdan Ştefan Vasile, Roxana Doina Truşcă, Liliana Mitoşeriu, Adelina-Carmen Ianculescu   +11 more
doaj   +1 more source

Order–Disorder Phase Stabilization by Pressure‐Induced Charge Transfer Enhances the Ferroelectric Photovoltaic Effect in Multiferroic BaFe4O7

Advanced Science, EarlyView.
A pressure‐driven charge transfer in multiferroic BaFe4O7 induces Fe valence disproportionation and structural distortion, drastically narrowing the bandgap and enhancing ferroelectric polarization. This synergistic optimization boosts photocurrent 2.5‐fold and is retained upon decompression, offering a promising strategy to overcome the ferroelectric ...
Jiayi Guan, Bihan Wang, Nana Li, Shang Peng, Ganghua Zhang, Limin Yan, Xuqiang Liu, Kai Zhang, Mingtao Li, Adama N‐Diaye, Qingyu Kong, Dongzhou Zhang, Xu Zhao, Ting Liu, Kejun Bu, Yuhong Mao, Gui Wang, Xujie Lü, Xiang Li, Tao Zeng, Wenge Yang   +20 more
wiley   +1 more source

First-order phase transition and unexpected rigid rotation mode in hybrid improper ferroelectric (La, Al) co-substituted Ca3Ti2O7 ceramics

Journal of Materiomics, 2019
Ca3Ti2O7 with Ruddlesden-Popper structure exhibits the largest polarization among the known hybrid improper ferroelectrics. However, the high Curie temperature impedes the thorough study of phase transition through dielectric characterization.
Z.Z. Hu, J.J. Lu, B.H. Chen, T.T. Gao, X.Q. Liu, W. Wen, X.M. Chen   +6 more
doaj   +1 more source

Enhancing Interlayer Bonding in DLP‐Printed Piezoelectric Ceramics via Controlled Secondary Curing for High Piezoelectric Performance

Advanced Science, EarlyView.
This study introduces an interfacial secondary curing strategy to overcome interlayer delamination in DLP‐printed PZT ceramics. Precise exposure time modulation enhances interfacial bonding via unsaturated bond conversion and stress control. Printed components exhibit a high piezoelectric coefficient (d33 = 516 pC·N−1) and exceptional sensing ...
Yaoting Zhao, Ruihang Liu, Wenlong Wang, Jin Zhang, Hongya Liu, Wei Gao, Xiujuan Lin, Hang Luo, Shifeng Huang, Dou Zhang   +9 more
wiley   +1 more source

Dielectric and AC-conductivity studies of Dy2O3 doped (K0.5Na0.5)NbO3 ceramics

AIP Advances, 2014
(K0.5Na0.5)NbO3 + x wt.% Dy2O3 (x = 0–1.5) ferroelectric ceramics were prepared by conventional solid state reaction method. XRD patterns revealed that orthorhombic symmetry has transformed into psuedocubic symmetry with increasing the substitution of ...
Mahesh Peddigari, Subhash Thota, Dobbidi Pamu   +2 more
doaj   +1 more source

Cobalt-Substituted Seven-Layer Aurivillius Bi8Fe4Ti3O24 Ceramics: Enhanced Ferromagnetism and Ferroelectricity

Crystals, 2017
In this work, Aurivillius-phase Bi8Fe4-xCoxTi3O24 (7-BFCT, 0 ≤ x ≤ 0.4) powders and ceramics were successfully prepared by the combination of citrate combustion and hot-press methods.
Zhiwei Lei, Tong Chen, Weigu Li, Min Liu, Wen Ge, Yalin Lu   +5 more
doaj   +1 more source

Ferroelectric Properties of Pb(Zr_0.53Ti_0.47)O₃ Ceramics Synthesized by Partial Oxalate Method (Using Zr_0.53Ti_0.47O₂ Hydrothermal Produced Powder as a Core of Pb(Zr_0.43Ti_0.47)O₃) [PDF]

, 1989
Takashi Yamamoto, Ryoji Tanaka, Kiyoshi Okazaki, Tamotsu Ueyama   +3 more
openalex   +1 more source

Enabling Robust N‐Type Perovskite Field‐Effect Transistors Through an TiO2 Interlayer Strategy

Advanced Science, EarlyView.
An ultrathin TiO2 interlayer strategy is developed for fabricating high‐performance, lead‐based, N‐type perovskite field‐effect transistors. This method improves film quality, reduces defects, and suppresses ion migration, enabling reproducible and stable devices.
Jiangnan Xia, Xincan Qiu, Ping‐An Chen, Yu Liu, Jiaqi Ding, Yu Zhang, Huan Wei, Zhenqi Gong, Chengyuan Peng, Wenpei Shi, Shuanglong Wang, Chen Chen, Yuanyuan Hu   +12 more
wiley   +1 more source

Unveiling the mechanism of substitution-induced high piezoelectric performance in PLZT ceramics

Journal of Advanced Ceramics
Ferroelectric lead zirconate titanate (PZT, PbZr1−xTixO3) dominates the piezoelectric ceramic market because of its high piezoelectric coefficient, high thermal stability and low processing cost.
Ciaran Joseph O’Malley, Xuyao Tang, Vladimir Koval, Kan Chen, Zixuan Wu, Krishnarjun Banerjee, Wanting Hu, Haixue Yan   +7 more
doaj   +1 more source

Surface Acoustic Wave Characteristics of Grain-Oriented Bismuth Layer-Structured Ferroelectric Ceramics [PDF]

, 1984
Tadashi Takenaka, Kōichirō Sakata, Kohji Toda   +2 more
openalex   +1 more source