Results 51 to 60 of about 86,530 (295)

Novel lead-free BCZT-based ceramic with thermally-stable recovered energy density and increased energy storage efficiency

Journal of Materiomics, 2022
The eco-responsible lead-free piezoelectric ceramics have been intensively searched for more than a decade, however, the final goal to replace toxic ceramics like lead zirconate titanate (PZT) with lead-free compounds, having comparable or even better ...
Zouhair Hanani, Soukaina Merselmiz, M'barek Amjoud, Daoud Mezzane, Mohammed Lahcini, Jaafar Ghanbaja, Matjaž Spreitzer, Damjan Vengust, Mimoun El Marssi, Igor A. Luk'yanchuk, Zdravko Kutnjak, Brigita Rožič, Mohamed Gouné   +12 more
doaj   +1 more source

Fabrication‐Directed Entanglement for Designing Chiral and Anisotropic Metamaterial Foams

Advanced Engineering Materials, EarlyView.
This work introduces fabrication‐directed entanglement (FDE), combining viscous thread printing and topology optimization to program entangled foams with spatially patterned stiffness. By tuning coil density, FDE enables anisotropy, programmable Poisson's ratio, and chirality in foams.
Daniel Revier, Brett Emery, Jacob Miske, Jeffrey Lipton   +3 more
wiley   +1 more source

X‐Ray Tomography Analysis of Damage Mechanisms in Metal Matrix Syntactic Foams During Compression

Advanced Engineering Materials, EarlyView.
In situ synchrotron X‐ray tomography is used to investigate the internal damage mechanisms of AlSi12 metal matrix syntactic foam with ceramic hollow spheres during compressive loading. It is concluded that a homogeneous distribution of the second‐phase filler material results in a sequential collapse in a localized region; this leads to controlled and ...
Indrajeet Tambe, János Endre Maróti, Imre Norbert Orbulov, Zoltan Hegedűs, Markus Ziehmer, Carl E. Krill III, Håkan Hallberg, Pär A. T. Olsson, Johan Hektor   +8 more
wiley   +1 more source

Ultralow Electrical Hysteresis along with High Energy‐Storage Density in Lead‐Based Antiferroelectric Ceramics

Advanced Electronic Materials, 2020
Antiferroelectric ceramics with extraordinary energy‐storage density have gained exponentially soaring attention for their applications in pulsed power capacitors. Nevertheless, high energy dissipation is a deficiency of antiferroelectric materials.
Kaiwei Huang, Guanglong Ge, Fei Yan, Bo Shen, Jiwei Zhai   +4 more
doaj   +1 more source

Enabling Digital Continuity in Virtual Manufacturing for Eco‐Efficiency Assessment of Lightweight Structures by Means of a Domain‐Specific Structural Mechanics Language: Requirements, Idea and Proof of Concept

Advanced Engineering Materials, EarlyView.
This article presents a solver‐agnostic domain‐specific language (DSL) for computational structural mechanics that strengthens interoperability in virtual product development. Using a hierarchical data model, the DSL enables seamless exchange between diverse simulation tools and numerical methods.
Martin Rädel, Andreas Schuster, Felix Schoenitz, Jean Lefèvre   +3 more
wiley   +1 more source

Optimizing high-temperature energy storage in tungsten bronze-structured ceramics via high-entropy strategy and bandgap engineering

Nature Communications
As a vital material utilized in energy storage capacitors, dielectric ceramics have widespread applications in high-power pulse devices. However, the development of dielectric ceramics with both high energy density and efficiency at high temperatures ...
Yangfei Gao, Zizheng Song, Haichao Hu, Junwen Mei, Ruirui Kang, Xiaopei Zhu, Bian Yang, Jinyou Shao, Zibin Chen, Fei Li, Shujun Zhang, Xiaojie Lou   +11 more
doaj   +1 more source

Experimental Analysis and Physics‐Based Analytical Model on Twisted and Coiled Artificial Muscles

Advanced Engineering Materials, EarlyView.
Twisted and coiled artificial muscles made from silver‐coated nylon fibers are investigated through experiments and analytical modeling. The actuators achieve contractions up to 19.3% and specific work of 8 kJ kg−1, though efficiency remains limited (≈0.15%) by thermal losses.
Salvatore Garofalo, Chiara Morano, Leonardo Pagnotta, Luigi Bruno   +3 more
wiley   +1 more source

High-energy storage and temperature stable dielectrics properties of lead-free BiScO(3)–BaTiO(3)–x(Bi(0.5)Na(0.5))TiO(3) ceramics

IET Nanodielectrics, 2018
Lead-free (1–x)(0.4BiScO(3)–0.6BaTiO(3))-x(Bi(0.5)Na(0.5))TiO(3) (BSBT–xBNT) ceramics were prepared by traditional ceramics preparation method. The energy storage characteristics, as well as dielectric spectrum curves of BSBT–xBNT ceramics, were ...
Hang Xie, Guobao Liu, Ling Yang, Jiwen Xu, Changrong Zhou, Haibo Zhang, Changlai Yuan, Guohua Chen, Wei Qiu, Hua Wang   +9 more
doaj   +1 more source

Amorphous calcium phosphates: synthesis, properties and uses in biomaterials [PDF]

, 2010
This review paper on amorphous calcium phosphates (ACPs) provides an update on several aspects of these compounds which have led to many studies and some controversy since the 1970s, particularly because of the lack of irrefutable proof of the occurrence
Combes, Christèle, Rey, Christian
core   +1 more source

A Positron Lifetime Study of Cooling and Natural Aging of Solutionized Aluminum Alloys

Advanced Engineering Materials, EarlyView.
The process during cooling of Al–Mg and Al–Mg–Si alloys from the solutionizing temperature down to 20 °C is interrupted. These states are analyzed with positron lifetime spectroscopy to trace the processes during cooling. In different temperature ranges, two stages of vacancy loss and solute clustering are identified.
Zi Yang, Mengjie Li, John Banhart
wiley   +1 more source