Results 111 to 120 of about 5,655,416 (266)

Dislocation-density function dynamics - An all-dislocation, full-dynamics approach for modeling intensive dislocation structures

open access: yes, 2016
It has long been recognized that a successful strategy for computational plasticity will have to bridge across the meso scale in which the interactions of high quantities of dislocations dominate.
Ngan, AHW   +3 more
core   +1 more source

Interfacial Failure and Self‐Healing in Solid‐State Batteries

open access: yesAdvanced Materials, EarlyView.
Dynamic interfacial self‐healing offers an adaptive route to mitigate coupled mechanical, chemical, and electrochemical degradation in solid‐state batteries. This review connects evolving interfacial failure mechanisms with physical‐flow, chemical‐restoration, stimuli‐responsive, and electric‐field‐assisted repair strategies, highlighting targeted self‐
Xinxin Zhu   +8 more
wiley   +1 more source

Metastable Polymers for Circular 3D Printing

open access: yesAdvanced Materials, EarlyView.
3D‐printed polymers are usually permanent and hard to recycle. Here, metastable polymers are designed to fall apart on demand. A chemical trigger unzips the printed material back into its original building blocks within minutes at room temperature.
Johannes Markhart   +2 more
wiley   +1 more source

Polar Wurtzite NbAlN: A Transition‐Metal Nitride Alloy for Polarization‐Engineered GaN Heterostructures

open access: yesAdvanced Materials, EarlyView.
A novel polar wurtzite alloy, NbAlN, is demonstrated as a transition‐metal‐containing polar barrier for GaN heterostructures. Nb atoms form coherent nanoscale enrichment within the wurtzite lattice without disrupting metal polarity. This study demonstrates that transition metals can be integrated into polar nitrides to enable polarization‐related ...
Atsushi Kobayashi   +12 more
wiley   +1 more source

Elasticity‐Driven Periodic Polarization Patterns in a Chiral Ferroelectric Nematic Fluid

open access: yesAdvanced Materials, EarlyView.
Chiral polar ferroelectric nematic fluids exhibit spontaneous formation of stripe, square, and hexagonal polarization textures under confinement. Controlled by thickness and anchoring, these patterns produce spatially modulated nonlinear optical responses.
Anej Sterle   +11 more
wiley   +1 more source

Research on the Characteristics and Atomic Diffusion Behavior of the Interface of Transition Layer Weld/Base Layer Weld in Stainless Steel Composite Material

open access: yesCrystals
Aimed at improving the mechanical performance of welded joints in stainless steel composite materials, this research investigates the evolutionary characteristics of microstructure at the interface between the transition layer weld and base layer weld ...
Yulan Feng, Zhisheng Wu
doaj   +1 more source

Recent Advances in Plasma‐Enhanced Atomic Layer Etching for Next‐Generation Nanofabrication

open access: yesAdvanced Materials Interfaces, EarlyView.
Continued semiconductor miniaturization demands atomic‐scale patterning and ultralow surface roughness beyond the capabilities of conventional reactive ion etching. This review highlights advances in isotropic and anisotropic plasma‐enhanced atomic layer etching since 2020, covering fundamental mechanisms, applications across major semiconductor ...
Shih‐Nan Hsiao
wiley   +1 more source

Thermoplastic Dielectric Coatings for Flexible Electrodynamic Dust Shields: Structural and Functional Performance

open access: yesAdvanced Materials Interfaces, EarlyView.
Thermoplastic attachment is introduced as a scalable surface coating strategy to improve the durability and dielectric reliability of flexible electrodynamic dust shields. By embedding chemically modified reduced graphene oxide (CMrGO) electrodes within thermoplastic laminates, mechanical degradation, abrasion damage, and vacuum‐induced electrical ...
Ide E. Onal   +6 more
wiley   +1 more source

Achieving strength-ductility synergy in M50 bearing steel via electroshock treatment: experiments and atomic simulation

open access: yesResults in Engineering
To achieve the synergistic enhancement of strength and ductility of bearing steel, a high-energy transient electroshock treatment (EST) process is proposed in this study.
Long Chen   +6 more
doaj   +1 more source

Atomistic Study for Geometrically Necessary Dislocation and Nanoindentation Size Effects

open access: yes, 2017
壓痕試驗為微觀及奈米尺度中最為普遍之材料強度檢測方式,當壓痕深度小至微米尺度時,硬度會隨著壓痕深度降低而升高,這種現象稱之為「壓痕尺寸效應」,Nix and Gao以幾何必要差排理論成功的解釋在微米尺度壓痕試驗的尺寸效應,但是在將其理論應用至奈米尺度時,硬度的預測則有高估的情形。近年來,許多研究紛紛針對此現象提出不同的看法,嘗試利用其他變數修正並解釋壓痕尺寸效應在奈米尺度下的行為。本研究將提出一在原子尺度模擬下量測差排密度的方法,並利用Taylor dislocation ...
Lin, Kuan-Po, 林冠伯
core  

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