Results 111 to 120 of about 148,147 (298)

Studies of Structural, Dielectric, and Impedance Spectroscopy of KBT-Modified Sodium Bismuth Titanate Lead-Free Ceramics. [PDF]

ACS Omega, 2022
Mesrar M, Elbasset A, Echatoui NS, Abdi F, Lamcharfi TD.   +4 more
europepmc   +1 more source

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

Advanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios, Anthony Gonzalez, Aleksander Aleman, Tyler Dolmetsch, Tanaji Paul, Arvind Agarwal   +5 more
wiley   +1 more source

Structural Elucidation, Electronic and Microwave Dielectric Properties of Ca(Sn _x Ti_1-x )O₃, (0 ≤ x ≤ 0.8) Lead-Free Ceramics. [PDF]

ACS Omega, 2022
Zaman A, Uddin S, Mehboob N, Tirth V, Algahtani A, Abbas M, Mushtaq M, Ali A, Sultana F, Althubeiti K, Ullah K, Bashir K, Ullah R.   +12 more
europepmc   +1 more source

Tailored Hierarchical Porous Copper Architectures via Three Dimensional Printing and Pressure‐less Sintering for Next‐Generation Lithium‐Metal Batteries

Advanced Engineering Materials, EarlyView.
A hierarchical porous copper current collector is fabricated via three‐dimensional printing combined with pressureless sintering to stabilize lithium metal anodes. The interconnected architecture lowers local current density, guides uniform Li deposition within pores, and suppresses dendrite growth.
Alok Kumar Mishra, Mukul Shukla
wiley   +1 more source

Enhanced ferroelectric and piezoelectric performance of (Ba_0.85Ca_0.15)(Zr_0.1Ti_0.9)O₃ lead-free ceramics upon Ce and Sb co-doping. [PDF]

RSC Adv, 2021
Zheng W, Lin J, Liu X, Yang W, Li Y.
europepmc   +1 more source

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth, Tomáš Babinský, Jan Lars Riedel, Wen Hao Kan, Aijun Huang, Martin Heilmaier, Ivo Šulák   +6 more
wiley   +1 more source

Enhanced dielectric and electrical properties of Li-doped BNBT ceramics for energy storage applications

Journal of Saudi Chemical Society
The compound [(Bi0.5Na0.5)0.94Ba0.06]1-xLixTiO3 (BNBT-Li) 0 ≤ x ≤ 0.04), was prepared using a solid-state reaction method. In the X-ray diffraction (XRD) study, a tetragonal structure was observed for the compositions x = 0 and steadily modified to a ...
Sapna Qazi, Amir Ullah, Irfan Akhtar, Mateen Ullah, Rajwali Khan, Aman Ullah, Burhan Ullah, Muneeb Ur Rahman, Hidayat Ullah Khan, Khaled Althubeiti, Sattam Al Otaibi   +10 more
doaj   +1 more source

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

Advanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal, Michael M. Becker, Sarah C. L. Fischer   +2 more
wiley   +1 more source

Progress in engineering high strain lead-free piezoelectric ceramics

Science and Technology of Advanced Materials, 2010
Environmental concerns are strongly driving the need to replace the lead-based piezoelectric materials currently employed as multilayer actuators. The current review describes both compositional and structural engineering approaches to achieve enhanced ...
Serhiy O Leontsev and Richard E Eitel
doaj  

Life cycle assessment of lead‐free potassium sodium niobate versus lead zirconate titanate: Energy and environmental impacts

EcoMat
Over the years, lead‐based piezoelectric ceramics found extensive use in vital fields such as sensors and actuators. Despite their exceptional electromechanical properties, lead‐containing materials pose severe environmental risks and foster a new era of
Yanqi Wu, Pak‐Sheng Soon, Jing‐Tong Lu, Jinling Zhou, Yi‐Xuan Liu, Zhaohui Guo, Ke Wang, Wen Gong   +7 more
doaj   +1 more source