Results 51 to 60 of about 309,913 (283)

Effect of Zr on precipitation kinetics of Fe-Cr-Al alloys

open access: yesHeat Treatment and Surface Engineering
The present work investigated the effect of Zr on the precipitation behavior and mechanical properties of Fe-13.5Cr-4.73Al-2.07Mo-(0.34∼0.45)Nb-(0.65∼0.87)Ta-(0.11∼0.33)Zr (wt. %) alloys.
Ben Niu   +5 more
doaj   +1 more source

High Entropy Materials: Challenges and Prospects

open access: yesMetals, 2021
Entropy is an important concept in thermodynamics, measuring the disorder in a system or, more precisely, the number of possible microscopic configurations of individual atoms or molecules of a system, i.e., microstates [...]
Peter K. Liaw, Weidong Li
doaj   +1 more source

High-entropy monoborides: Towards superhard materials [PDF]

open access: yesScripta Materialia, 2020
Abstract Single-phase high-entropy monoborides (HEMBs) of the CrB prototype structure have been synthesized for the first time. Reactive spark plasma sintering of ball milled mixtures of elemental precursor powders produced bulk (V0.2Cr0.2Nb0.2Mo0.2Ta0.2)B, (V0.2Cr0.2Nb0.2Mo0.2W0.2)B, and (V0.2Cr0.2Nb0.2Ta0.2W0.2)B HEMB specimens of ~98.3–99.5 ...
Mingde Qin   +5 more
openaire   +1 more source

Interplay between circadian and other transcription factors—Implications for cycling transcriptome reprogramming

open access: yesFEBS Letters, EarlyView.
This perspective highlights emerging insights into how the circadian transcription factor CLOCK:BMAL1 regulates chromatin architecture, cooperates with other transcription factors, and coordinates enhancer dynamics. We propose an updated framework for how circadian transcription factors operate within dynamic and multifactorial chromatin landscapes ...
Xinyu Y. Nie, Jerome S. Menet
wiley   +1 more source

Phase-shift engineered triboelectric nanogenerators for constant-voltage output and efficient energy harvesting

open access: yesCommunications Materials
Triboelectric nanogenerators (TENGs) have emerged as a promising technology for harvesting ambient mechanical energy, their practical deployment has been strongly underpinned by their excellent inherent capabilities for ambient mechanical energy ...
Xinyuan Li   +3 more
doaj   +1 more source

Function‐driven design of a surrogate interleukin‐2 receptor ligand

open access: yesFEBS Letters, EarlyView.
Interleukin (IL)‐2 signaling can be achieved and precisely fine‐tuned through the affinity, distance, and orientation of the heterodimeric receptors with their ligands. We designed a biased IL‐2 surrogate ligand that selectively promotes effector T and natural killer cell activation and differentiation. Interleukin (IL) receptors play a pivotal role in
Ziwei Tang   +9 more
wiley   +1 more source

Superconductivity in a new hexagonal high entropy alloy

open access: yes, 2019
High entropy alloys (HEAs) are the new class of materials with an attractive combination of tunable mechanical and physicochemical properties. They crystallize mainly in cubic structures, however, for practical applications, HEAs with hexagonal close ...
Boullay, P.   +7 more
core   +3 more sources

High-Entropy Superconducting Materials

open access: yes
High-entropy alloys are a rapidly evolving field of materials research and have gained increasing attention in recent years. Characterized by their multicomponent compositions, they were originally created by mixing a multitude of metallic elements and expanded the idea of traditional alloy design, opening new paths for materials research.
Cayado Llosa, Pablo, Hänisch, Jens
openaire   +4 more sources

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

open access: yesFEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka   +11 more
wiley   +1 more source

Dual coating layers to enhance oxidation resistance for refractory high-entropy alloys

open access: yesResults in Materials
Refractory high-entropy alloys (RHEAs) possess excellent high-temperature mechanical properties, making them have the promising potential for applications at temperatures higher than Ni-base superalloys.
Shao-Wei Huang   +7 more
doaj   +1 more source

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