Results 41 to 50 of about 6,148,141 (283)

SPS-Prepared High-Entropy (Bi0.2Na0.2Sr0.2Ba0.2Ca0.2)TiO3 Lead-Free Relaxor-Ferroelectric Ceramics with High Energy Storage Density

, 2023
Compared to batteries and electrochemical capacitors, dielectric capacitors are widely studied because of their huge advantages in terms of charging/discharging speed and power density. In this work, high-entropy (Bi0.2Na0.2Sr0.2Ba0.2Ca0.2)TiO3 lead-free
Chanatip Samart, Ya Lu, Naohisa Takesue, Haibo Zhang, Huabin Yang, Pengyuan Fan, Hua Tan   +6 more
core   +1 more source

Improvement of electrical and energy harvesting properties of new lead-free BST modified 0.995BNKT–0.005LN ceramics

Journal of Asian Ceramic Societies, 2023
New lead-free (1-y)[0.995Bi0.5(Na0.80K0.20)0.5TiO3-0.005LiNbO3]-y[(Ba0.7Sr0.3)TiO3] or (1-y)[0.995BNKT-0.005LN]-y[BST] (where y = 0, 0.01, 0.02, 0.03, 0.04 and 0.05 mol fraction) ceramics were fabricated by a conventional sintering method with two ...
Pimpilai Wannasut, Panupong Jaiban, Pharatree Jaita, Methee Promsawat, Orawan Khamman, Anucha Watcharapasorn   +5 more
doaj   +1 more source

Technology and Electrophysical Properties of the (K0.44Na0.52Li0.04) NbO3 Ceramics Doped by Cr3+, Zn2+, Sb3+ or Fe3+ [PDF]

Archives of Metallurgy and Materials, 2018
In the work five ceramic compounds based on the (K0.44Na0.52Li0.04)NbO3 (KNLN) material modified with oxides: Cr2O3, ZnO, Sb2O3 or Fe2O3 (in an amount of 0.5 mol.%) were obtained.
D. Bochenek, K. Osińska, P. Niemiec, M. Adamczyk, T. Goryczka, R. Szych   +5 more
doaj   +1 more source

Magnetic and electric properties of bismuth ferrite lead titanate ceramics [PDF]

, 2010
Solid solutions of multiferroic BiFeO3 doped with ferroelectric PbTiO3 (BFPT) can be prepared by conventional mixed oxide processing to produce a range of polycrystalline ceramics ranging throughout the xBiFeO3 - (1-x)PbTiO3 series. Sintered ceramics are
Stevenson, Timothy James
core   +6 more sources

A Rotary-Linear Ultrasonic Motor Using MnO₂-Doped (Ba_0.97Ca_0.03)(Ti_0.96Sn_0.005Hf_0.035)O₃ Lead-Free Piezoelectric Ceramics with Improved Curie Temperature and Temperature Stability

Actuators, 2022
In this work, a cylindrical lead-free rotary-linear ultrasonic motor was attached to piezoelectric plates of MnO2-doped (Ba0.97Ca0.03)(Ti0.96Sn0.005Hf0.035)O3 ceramics using the first bending vibration to pull a thread output shaft of the interior of a ...
Cheng-Che Tsai, Sheng-Yuan Chu, Wei-Hsiang Chao, Cheng-Shong Hong   +3 more
doaj   +1 more source

Giant energy-storage density with ultrahigh efficiency in lead-free relaxors via high-entropy design

Nature Communications, 2022
Dielectric ceramics are widely used in advanced high/pulsed power capacitors. Here, the authors propose a high-entropy strategy to design “local polymorphic distortion” in lead-free ceramics, achieving high energy storage performance.
Liang Chen, Shiqing Deng, Hui Liu, Jie Wu, He Qi, Jun Chen   +5 more
doaj   +1 more source

Lead-Free Textured Ceramics with Ultrahigh Piezoelectric Properties by Synergistic Design

, 2023
Lead-free ceramics with superior piezoelectric performance are highly desirable in various electromechanical applications. Unfortunately, it is still challenging to achieve significantly enhanced piezoelectricity without sacrificing the Curie temperature
Hang Xie (218360), Fei Li, Zerui Zhang (736858), Haobin Lei (16715128), Haobin Lei, Shuai Yang, Linjing Liu, Bin Yang (103252), Qiangwei Kou, Bin Yang, Hang Xie, Fei Li (143236), Yuan Sun, Yuan Sun (15554), Yunfei Chang, Qiangwei Kou (9234625), Zerui Zhang, Linjing Liu (9234622), Yunfei Chang (4382383), Shuai Yang (645019)   +19 more
core   +1 more source

Revisiting Stability Criteria in Ball‐Milled High‐Entropy Alloys: Do Hume–Rothery and Thermodynamic Rules Equally Apply?

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
The stability criteria affecting the formation of high‐entropy alloys, particularly focusing in supersaturated solid solutions produced by mechanical alloying, are analyzed. Criteria based on Hume–Rothery rules are distinguished from those derived from thermodynamic relations. The formers are generally applicable to mechanically alloyed samples.
Javier S. Blázquez, Alejandro F. Manchón‐Gordón, Antonio Vidal‐Crespo, Rafael Caballero‐Flores, Jhon J. Ipus, Clara F. Conde   +5 more
wiley   +1 more source

What Do Large Language Models Know About Materials?

Advanced Engineering Materials, EarlyView.
If large language models (LLMs) are to be used inside the material discovery and engineering process, they must be benchmarked for the accurateness of intrinsic material knowledge. The current work introduces 1) a reasoning process through the processing–structure–property–performance chain and 2) a tool for benchmarking knowledge of LLMs concerning ...
Adrian Ehrenhofer, Thomas Wallmersperger, Gianaurelio Cuniberti   +2 more
wiley   +1 more source

Enhanced strain and electrostrictive properties in lead-free BNT-based ceramics via rare earth doping

Journal of Materiomics, 2022
Bi0.5Na0.5TiO3 (BNT)-based ceramics are one of the most promising lead-free ferroelectrics due to their high strain property. Compared to other chemical modifications, rare earth ions doping provides significant possibility to optimize the strain ...
Anping Deng, Jiagang Wu
doaj   +1 more source