Results 81 to 90 of about 14,723 (260)

Studies on structural, dielectric and optical properties of (Ba_0.95Ca_0.05)_1-x (Ti_0.8Sn_0.2)_1-x Na _x Nb _x O₃ lead-free ceramics. [PDF]

RSC Adv, 2021
Slimi H, Oueslati A, Aydi A.
europepmc   +1 more source

Electrical Properties of Lead Free Sr0.8Na0.1Sm0.1Bi4Ti4O15 Ceramics

Procedia Materials Science, 2015
AbstractPolycrystalline Sr1-2xNaxSmxBi4Ti4O15 (SNSBT) belongs to bismuth layer structured ferroelectric (BLSF) materials with x=0.1 have been prepared by sol gel method. XRD analysis confirms single phase formation with orthorhombic structure. Scanning electron micro graph of the material shows plate like grains with random orientation.
Ashok, K., Mamatha, B., Sarah, P.
openaire   +1 more source

A Lightweight Procedural Layer for Hybrid Experimental–Computational Workflows in Materials Science

Advanced Engineering Materials, EarlyView.
We unveil a prototype hybrid‐workflow framework that fuses automatedcomputation with hands‐on experiments. Built atop pyiron, a lightweight, parameterized layer translates procedure descriptions into executable manual steps, syncing instrument settings, human interventions, and data capture in real‐time today.
Steffen Brinckmann, Sarath Menon, Raphael Röske, Johannes Steinhülb, Michael Selzer, Jan Janssen, Tilmann Hickel, Ruth Schwaiger, Jörg Neugebauer   +8 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

PASTA‐ELN: Simplifying Research Data Management for Experimental Materials Science

Advanced Engineering Materials, EarlyView.
Research data management faces ongoing hurdles as many ELNs remain complex and restrictive. PASTA‐ELN offers an open‐source, cross‐platform solution that prioritizes simplicity, offline access, and user control. Its in tuitive folder structure, modular Python add‐ons, and open formats enable seamless documentation, FAIR data practices, and easy ...
S. Brinckmann, G. Winkens, R. Schwaiger
wiley   +1 more source

Influence of Nb2O5 crystal form on the structure and properties of potassium sodium niobate-based piezoelectric ceramics

Gongneng cailiao yu qijian xuebao
Utilizing solid-phase sintering technology, lead-free piezoelectric ceramics (K0.44Na0.52Li0.04)(Nb0.9Ta0.06Sb0.04)O3 with high density and superior electrical properties were successfully fabricated at temperatures ranging from 1055 to 1070 ℃.
Lin WANG, Jiangtao ZENG, Xingfeng XU, Yongli ZHANG   +3 more
doaj   +1 more source

Observation of large electrocaloric properties in lead-free Ba0.98Ca0.02Ti0.98Sn0.02O3 ceramics

AIP Advances, 2019
Tetragonal lead-free Ba0.98Ca0.02Ti0.98Sn0.02O3 (BCST) compound sintered at 1400 °C was investigated for its electrocaloric properties. The large adiabatic temperature variation, ΔT ∼ 0.476 K and isothermal entropy change, ΔS ∼ 1.90 J/kg.K were obtained ...
Ramovatar, Indrani Coondoo, Pradip Kumar, Azam A. Khan, S. Satapathy, Neeraj Panwar   +5 more
doaj   +1 more source

Influence of Test Temperature and Test Frequency on Fatigue Life of Aluminum Alloy EN AW‐2618A

Advanced Engineering Materials, EarlyView.
The influence of test temperature and test frequency on the fatigue life of EN AW‐2618A is investigated. High‐cycle fatigue tests are performed at different test temperatures and frequencies on the 1000 h/230°C overaged state. Both test parameters reduce fatigue life due to time‐dependent damage mechanisms.
Ying Han, Julian M. Rosalie, Jan Radners, Mauro Madia, Philipp von Hartrott, Birgit Skrotzki   +5 more
wiley   +1 more source

Creep Properties and Deformation Mechanism of Additively Manufactured NiAl‐CrMo Composites

Advanced Engineering Materials, EarlyView.
Additively manufactured NiAl‐CrMo composites contain numerous interfaces and cell boundaries that control their creep response. At 700°C under high applied stress, creep is dominated by dislocation‐controlled power‐law mechanisms. At 800°C–900°C and lower stresses, creep is primarily diffusion‐controlled along cell boundaries.
Jan Vollhüter, Andreas Bezold, Johan Westraadt, Katharina Fiegl, Subham Chattoraj, Benjamin Wahlmann, Carolin Körner, Michael Mills, Mathias Göken, Steffen Neumeier   +9 more
wiley   +1 more source