Results 61 to 70 of about 419,468 (275)

Thermal softening-suppressed inter-granular embrittlement of polycrystalline 3C-SiC under diamond cutting

open access: yesMaterials & Design, 2022
While the deformation behavior of grain boundaries has a strong impact on the mechanical response of polycrystalline materials, investigating the coupled thermal–mechanical properties of grain boundaries in their real formats is crucial for enhancing the
Liang Zhao   +5 more
doaj   +1 more source

What limits supercurrents in high temperature superconductors? A microscopic model of cuprate grain boundaries

open access: yes, 2009
The interface properties of high-temperature cuprate superconductors have been of interest for many years, and play an essential role in Josephson junctions, superconducting cables, and microwave electronics.
A Gurevich   +34 more
core   +1 more source

Harnessing Fungal Biowelding for Constructing Mycelium‐Engineered Materials

open access: yesAdvanced Engineering Materials, EarlyView.
Mycelium‐bound composites (MBCs) offer low‐carbon alternatives for construction, yet interfacial bonding remains a critical challenge. This review examines fungal biowelding as a biocompatible adhesive, elucidating mycelium‐mediated interfacial mechanisms and their role in material assembly. Strategies to optimize biowelding are discussed, highlighting
Xue Brenda Bai   +2 more
wiley   +1 more source

Unveiling electron scattering mechanism at Al-doped grain boundaries in Cu interconnects

open access: yesMaterials & Design
Doping by capping layers followed by thermal diffusion is an effective way to improve electromigration reliability in Cu interconnects and extend the lifetime of electronic devices.
Xinyu Jin   +6 more
doaj   +1 more source

A Grain Boundary Regulates the Friction Behaviors between Graphene and a Gold Substrate

open access: yesCrystals, 2019
The nanofriction of graphene is critical for its broad applications as a lubricant and in flexible electronics. Herein, using a Au substrate as an example, we have investigated the effect of the grain boundary on the nanofriction of graphene by means of ...
Pinxuan He   +7 more
doaj   +1 more source

Special Grain Boundaries in Ultrafine-Grained Tungsten

open access: yesNanoscale Research Letters, 2016
Field ion microscopy and computer simulation were used for the study of an atomic structure high-angle grain boundary in hard-drawn ultrafine-grained tungsten wire. These boundaries with special misorientations are beyond the scope of the coincident site lattice model.
Dudka, O. V.   +5 more
openaire   +2 more sources

Direct observation of nanometer-scale amorphous layers and oxide crystallites at grain boundaries in polycrystalline Sr1-xKxFe2As2 superconductors

open access: yes, 2011
We report here an atomic resolution study of the structure and composition of the grain boundaries in polycrystalline Sr0.6K0.4Fe2As2 superconductor. A large fraction of grain boundaries contain amorphous layers larger than the coherence length, while ...
Gao, Zhaoshun   +10 more
core   +1 more source

On the boundary-layer structure of patterns of convection in rectangular-planform containers [PDF]

open access: yes, 1999
This paper considers the structure of steady-state solutions of the Swift–Hohenberg equation describing convection in shallow rectangular-planform containers heated from below.
Daniels, P.G., Lee, A. T.
core   +1 more source

Recent Progress in Oxide‐Based Na‐Ion Conductors

open access: yesAdvanced Engineering Materials, EarlyView.
Recent advances in oxide‐based sodium‐ion conductors are reviewed, focusing on β/β″‐alumina, NASICON‐type compounds, and Na5YSi4O12‐type (N5) silicates, together with emerging perovskite and layered oxides. Improvements in ionic conductivity, compositional tuning, and processing are highlighted.
Bowei Xun   +3 more
wiley   +1 more source

Dislocation interactions mediated by grain boundaries

open access: yes, 2008
The dynamics of dislocation assemblies in deforming crystals indicate the emergence of collective phenomena, intermittent fluctuations and strain avalanches.
Fetter A L   +10 more
core   +1 more source

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