Results 71 to 80 of about 28,160 (263)

Control of Polarization and Polar Helicity in BiFeO3 by Epitaxial Strain and Interfacial Chemistry

open access: yesAdvanced Functional Materials, EarlyView.
In BiFeO3 thin films, the interplay of interfacial chemistry, electrostatics, and epitaxial strain is engineered to stabilize homohelicity in polarization textures at the domain scale. The synergistic use of a Bi2O2‐terminated Aurivillius buffer layer and a highly anisotropic compressive epitaxial strain offers new routes to control the polar‐texture ...
Elzbieta Gradauskaite   +5 more
wiley   +1 more source

Ferroelectricity in Antiferromagnetic Wurtzite Nitrides

open access: yesAdvanced Functional Materials, EarlyView.
We establish MnSiN2${\rm MnSiN}_2$ and MnGeN2${\rm MnGeN}_2$ as aristotypes of a new multiferroic wurtzite family that simultaneously exhibits ferroelectricity and antiferromagnetism with altermagnetic spin splitting. By strategically substituting alkaline‐earth metals, we predict new materials with coexisting switchable polarization, spin texture, and
Steven M. Baksa   +3 more
wiley   +1 more source

Multimodal Soft Surgical Robots Enabled by Eco‐Degradable, Sterilizable Polymers and Transient Electronics

open access: yesAdvanced Functional Materials, EarlyView.
A compostable PGS soft surgical robot with interchangeable modules integrates transient Mo tactile and Si thermal sensors for dual feedback. The device preserves its function after clinical‐grade sterilization, demonstrates stable actuation and cardiac tissue grasping with real‐time in vivo pulsatile monitoring, and biodegrades post‐use with soil‐safe, 
Minseong Chae   +27 more
wiley   +1 more source

STUDYONDEFORMATIONFORMANDENERGYABSORPTIONCHARACTERISTICS OF METAL THIN-WALLED SANDWICH STRUCTURE (MT)

open access: yesJixie qiangdu, 2023
A thin-walled sandwich structure filled with polyurethane is introduced. Based on the hyperelastic constitutive model of polyurethane, the energy absorption characteristics of the structure are studied and compared with single-layer and double-layer thin-
ZOU GuangPing   +5 more
doaj  

Spatially Modulated Morphotropic Phase Boundaries in a Compressively Strained Multiferroic Thin Film

open access: yesAdvanced Functional Materials, EarlyView.
ABSTRACT The coexisting rhombohedral‐like (R′, MA) and tetragonal‐like (T′, MC) monoclinic phases in compressively strained bismuth ferrite thin films exhibit exceptional piezoelectric and magnetic properties. While previous studies have largely focused on probing the morphotropic phase boundaries (MPBs) comprising ordered R′/T′ twins, their self ...
Ting‐Ran Liu   +7 more
wiley   +1 more source

Achieving High ON State Current through Ferroelectric Polarization‐Dependent Interfacial Resistance Switching in Undoped Orthorhombic HfO2 Films

open access: yesAdvanced Functional Materials, EarlyView.
Ferroelectric tunnel junction devices based on epitaxial undoped ferroelectric HfO2 films demonstrate stable switching endurance of over 106 switching cycles, low write voltages of ±3 V, 16 measured resistance states, and neuromorphic capability.
Markus Hellenbrand   +13 more
wiley   +1 more source

On measurement of structural intensity in thin-walled structures [PDF]

open access: yesThe Journal of the Acoustical Society of America, 1991
In order to measure structural intensity in a thin-walled structure (shell), one has to employ intensity expressions given in terms of physical quantities that (a) are measurable and (b) refer to the external surface of the shell. These quantities are surface strains and displacements or displacement derivatives—either velocities or accelerations ...
openaire   +1 more source

Effects of rotation speed on microstructure and mechanical properties of non-prehole riveting process for high-strength aluminium alloys

open access: yesMaterials & Design
Traditional solid riveting and hi-lock bolt (HLB) are widely adopted in the aircraft assembly, but require pre-drilled holes before joining. In this research, an improved friction self-piercing riveting process was developed to connect 2.0 mm + 4.0 mm ...
Yunpeng Liu   +8 more
doaj   +1 more source

Parametric Analysis of Square Thin Walled Section in Energy Absorption due to Oblique Load [PDF]

open access: yesInternational Journal of Advanced Design and Manufacturing Technology, 2010
In this study, first energy absorption of axial and bending loading is considered. Next, thin walled structures under oblique loading are investigated using ABAQUS computer simulation, where 180 different cases are simulated.
Reza Mohamadipour   +2 more
doaj  

Machine Learning‐Assisted Inverse Design of Soft and Multifunctional Hybrid Liquid Metal Composites

open access: yesAdvanced Functional Materials, EarlyView.
A machine learning framework is presented for inverse design of synthesizable multifunctional composites containing both liquid metal and solid inclusions. By integrating physics‐based modeling, data‐driven prediction, and Bayesian optimization, the approach enables intelligent design of experiments to identify optimal compositions and realize these ...
Lijun Zhou   +5 more
wiley   +1 more source

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