Results 141 to 150 of about 25,661 (302)

Ultrahigh Energy Storage Properties in (Sr_0.7Bi_0.2)TiO₃-Bi(Mg_0.5Zr_0.5)O₃ Lead-Free Ceramics and Potential for High-Temperature Capacitors. [PDF]

Materials (Basel), 2020
Kong X, Yang L, Cheng Z, Zhang S.
europepmc   +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

Texturation of lead-free BaTiO3 based piezoelectric ceramics

, 2013
Nowadays, piezoelectric ceramics are integrated in a wide range of devices, in particular in ultrasonic applications (underwater sonar systems, medical imaging, non-destructive testing…). Most of them use Pb(Zr,Ti)O3 (PZT). However, due to health care and environmental problems, lead content must be reduced in such applications [1].
Ngueteu-Kamlo, A, Levassort, F, Pham Thi, M, Marchet, Pascal   +3 more
openaire   +3 more sources

Recycling of NiTi Shape Memory Alloys: Fundamental and Technological Aspects of a Vacuum Induction Melting Processing Route

Advanced Engineering Materials, EarlyView.
The present study investigates recycling of NiTi shape memory alloys via vacuum induction melting. An ingot was synthesized from elemental Ni and Ti and subjected to three subsequent remelting cycles. Remelting increases process durations and impurity levels and adversely affects microstructures and functional properties.
Sakia Sophia Noorzayee, Son Tung Mai, Sarath Menon, Braulio Gadiel Sánchez Ortega, Ralf Drautz, Alexander Kauffmann, Gunther Eggeler, Jan Frenzel   +7 more
wiley   +1 more source

Ferroelectric and Piezoelectric Properties of (Mg_1/3Nb_2/3)⁴⁺-Doped Bismuth Sodium Titanate Ceramics

Ceramics
Lead-free (Bi1/2Na1/2)(Ti1−x(Mg1/3Nb2/3)x)O3 ceramics were synthesized using the solid-phase method, and the effects of varying (Mg1/3Nb2/3)4+ content, substituting for Ti4+ ions at the B-site of the BNT perovskite lattice, on piezoelectric performance ...
Yonggang Zhao, Ning Yang, Yi Chen, Xingting Li, Luyao Wang, Peng Wang, Guangzhi Dong   +6 more
doaj   +1 more source

Bismuth Ferrite-Based Lead-Free High-Entropy Piezoelectric Ceramics

Piezoelectric ceramics, as essential components of actuators and transducers, have captured significant attention in both industrial and scientific research.
Hongtian Li (4270699), Xiaoxin Chen (88807), Peifeng Li (255005), Yong Li (15029), Dawei Wang (471687), Jianwei Zhao (414203), Huanfu Zhou (4623430), Hailan Qin (17931157), Longyu Chen (14492030), Jinming Guo (15191240)   +9 more
core   +1 more source

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

Advanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara, Vincent Rat, Quentin Dubreuil, Patrice Valorge, Simon Goutier, Alain Denoirjean, Olivier Messe, Céline Ruelle, Jean‐Philippe Poli   +8 more
wiley   +1 more source

Correction: Composition design, electrical properties, and temperature stability in (1 - x)K_0.44Na_0.56Nb_0.96Sb_0.04O₃-xBi_0.45La_0.05Na_0.5ZrO₃ lead-free ceramics. [PDF]

RSC Adv, 2020
Ma J, Wu J, Wu B.
europepmc   +1 more source

Contrasting strain mechanisms in lead-free piezoelectric ceramics

, 2015
Piezoelectric ceramics find a wide range of applications in advanced technological fields. Most of the currently used piezoelectric ceramics contain lead (Pb).
Khansur, Neamul Hayet
core   +1 more source