Results 1 to 10 of about 8,138,282 (202)

The Effect of Dopants on Sintering and Microstructure of Lead-free KNN Ceramics

Medžiagotyra, 2011
Lead-free potassium sodium niobate (K0.5Na0.5)NbO3 (KNN) has been prepared via conventional ceramic processing method. The influence of 0.5 wt% - 1.5 wt% MnO2 and WO3 addition on the sintering, crystallographic structure, microstructure and dielectric ...
Ilze SMELTERE, Maija ANTONOVA, Anna KALVANE, Oskars GRIGS, Maris LIVINSH   +4 more
doaj   +1 more source

Corrosion Behavior of Zinc Wrought Alloy ZnAl15Cu1Mg (ZEP1510) as a Potential Substitute for Brass and Galvanized Steel

Alloys
The increasing restriction of lead in industrial alloys, particularly in copper–zinc-based materials such as CuZn40Pb2, necessitates the development of environmentally safer alternatives.
Abdulkerim Karaman, Alexander Kremer, Michael Marré   +2 more
doaj   +1 more source

Comparative Analysis of Inorganic B-Site Absorber Materials in Perovskite Solar Cells

IEEE Access
Perovskite solar cells (PSCs), known for their high power conversion efficiencies and low-cost fabrication, face critical challenges due to the toxicity and instability of lead-based absorbers.
Aisha Shaikh, Pervez Hameed Shaikh, Shoaib Ahmed Khatri, Faheemullah Shaikh, Sadaf Gul Unar, Laveet Kumar, Mohamed Sultan Mohamed Ali   +6 more
doaj   +1 more source

High-sensitivity self-powered circularly polarized light detection based on chiral antimony-based halides with strong polarity

Nano Research
Chiral organic-inorganic hybrid halides show significant potential for applications in circularly polarized photodetection, chiral-induced spin selectivity effects (CISS), and nonlinear optics.
Zhi Yang, Yunlong Bai, Jiandong Yao, Jie Wu, Sheng Cao, Yangding Qiu, Bingsuo Zou, Mingjian Yuan, Jialiang Xu, Lingyu Wan, Ruosheng Zeng   +10 more
doaj   +1 more source

Electromechanical Anisotropy at the Ferroelectric to Relaxor Transition of (Bi0.5Na0.5)0.94Ba0.06TiO3 Ceramics from the Thermal Evolution of Resonance Curves

Applied Sciences, 2018
(Bi0.5Na0.5)0.94Ba0.06TiO3 dense ceramics were obtained from autocombustion sol-gel synthesized nanopowders and sintered at 1050 °C for 1–2 h for the study of the electromechanical anisotropy. Measurement of the complex impedance spectrum was carried out
Nicolás Pérez, Alvaro García, Enrique Riera, Lorena Pardo   +3 more
doaj   +1 more source

Prospective of (BaCa)(ZrTi)O₃ Lead-free Piezoelectric Ceramics

Crystals, 2019
Piezoelectric ceramics is a functional material that can convert mechanical energy into electrical energy and vice versa. It can find wide applications ranging from our daily life to high-end techniques and dominates a billion-dollar market.
Wenfeng Liu, Lu Cheng, Shengtao Li
doaj   +1 more source

LEAD-FREE BNKT PIEZOELECTRIC ACTUATOR

Iranian Journal of Materials Science and Engineering, 2016
An actuator is a device that converts input energy into mechanical energy. According to various types of input energy, various actuators have been advanced. Displacement in the electromagnetic, hydraulic and pneumatic actuators achieve by moving a piston
A. Moosavi, M. A. Bahrevar, A. R. Aghaei
doaj  

Alternative model of a 1–1–3 composite, its piezoelectric properties and figures of merit

Journal of Advanced Dielectrics
A model of a novel 1–3-type composite containing two ferroelectric components is put forward. In this composite, ferroelectric single crystal (SC) rods and ferroelectric ceramic rods are distributed in a polymer matrix.
Vitaly Yu. Topolov
doaj   +1 more source

BaTiO₃–(Na_0.5Bi_0.5)TiO₃ Ceramic Materials Prepared via Multiple Design Strategies with Improved Energy Storage

Nanomaterials
The investigation of environmentally friendly, Pb-free ceramic dielectric materials with excellent energy storage capability represents a fundamental yet challenging research direction for the development of next-generation high-power capacitors. In this
Jianming Deng, Jingjing Guo, Ting Wang, Jingxiang Zhang, Xu Wu, Xuefeng Zhang, Surya Veerendra Prabhakar Vattikuti, Qing Ma, Pitcheri Rosaiah, Qingfeng Zhang   +9 more
doaj   +1 more source

Energy-Storage Performance of High-Entropy (NaBiBa)_0.205 (SrCa)_0.1925TiO₃-La(Mg_0.5Zr_0.5)O₃ Ceramic Under Moderate Electric Fields

Energies
With the global low-voltage power market expanding rapidly, lead-free dielectric ceramics exhibit excellent stability and environmental friendliness, but their strong field-dependence limits low-field applications. There is an urgent need to develop lead-
Peng Shi, Heng Li, Yu Zhou, Ziying Wang, Yiming Wang   +4 more
doaj   +1 more source