Results 51 to 60 of about 26,242 (276)

Nanoscale chemical and structural investigation of solid solution polyelemental transition metal oxide nanoparticles

open access: yesiScience, 2023
Summary: Although it has been shown that configurational entropy can improve the structural stability in transition metal oxides (TMOs), little is known about the oxidation state of transition metals under random mixing of alloys.
Abhijit H. Phakatkar   +2 more
doaj   +1 more source

Configurational entropy of self-propelled glass formers

open access: yesPhysica A: Statistical Mechanics and its Applications, 2023
The configurational entropy is an indispensable tool to describe super-cooled liquids near the glass transition. Its calculation requires the enumeration of the basins in the potential energy landscape and when available, it reveals a direct connection with the relaxation time of the liquid.
N, Sachin C, Joy, Ashwin
openaire   +2 more sources

Quantification of Solid Solution Strengthening and Internal Stresses through Creep Testing of Ni-Containing Single Crystals at 980 °C

open access: yesMetals, 2021
Various alloy compositions were cast as single crystals in a Bridgman vacuum induction furnace and creep tested at 980 °C: pure Ni, the equiatomic alloys CoCrNi and CrMnFeCoNi (Cantor alloy), single-phase fcc (Ni) solid solution alloys (with the ...
Uwe Glatzel   +6 more
doaj   +1 more source

Configurational entropy of polar glass formers and the effect of electric field on glass transition

open access: yes, 2016
A model of low-temperature polar liquids is constructed that accounts for configurational heat capacity, entropy, and the effect of a strong electric field on the glass transition.
Matyushov, D. V.
core   +1 more source

Configurational entropy of hydrogen-disordered ice polymorphs [PDF]

open access: yesThe Journal of Chemical Physics, 2014
The configurational entropy of several H-disordered ice polymorphs is calculated by means of a thermodynamic integration along a path between a totally H-disordered state and one fulfilling the Bernal-Fowler ice rules. A Monte Carlo procedure based on a simple energy model is used, so that the employed thermodynamic path drives the system from high ...
Herrero, Carlos P., Ramírez, Rafael
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

Enhancing electrocaloric effects of KNN-based ceramics by phase- and ion-configurational entropy regulation based on phase-field modeling

open access: yesnpj Computational Materials
Potassium-sodium niobate (KNN)-based piezoelectric materials demonstrate exceptional electrocaloric (EC) optimization potential owing to phase configurational diversity, though current performance remains constrained by insufficient entropy modulation ...
Xiaoqian Wu   +4 more
doaj   +1 more source

Information-Entropic for Travelling Solitons in Lorentz and CPT Breaking Systems

open access: yes, 2015
In this work we group three research topics apparently disconnected, namely solitons, Lorentz symmetry breaking and entropy. Following a recent work [Phys. Lett.
Correa, R. A. C.   +2 more
core   +1 more source

Structural biology of ferritin nanocages

open access: yesFEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

The effect of configurational entropy on acoustic emission of P2-type layered oxide cathodes for sodium-ion batteries

open access: yesJPhys Energy, 2023
Sodium-ion batteries (SIBs) see intensive research and commercialization efforts, aiming to establish them as an alternative to lithium-ion batteries.
Sören L Dreyer   +6 more
doaj   +1 more source

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