Results 51 to 60 of about 270,244 (281)

Estimation of Gibbs free energy difference in Pd-based bulk metallic glasses [PDF]

open access: yesChina Foundry, 2008
A new thermodynamic expression for Gibbs free energy difference ΔG between the under-cooled liquid and the corresponding crystals of bulk metallic glasses was derived.
Cai Anhui, Xiong Xiang, Liu Yong
doaj  

Estimation of viscosity for some silicate ternary slags [PDF]

open access: yesJournal of Mining and Metallurgy. Section B: Metallurgy, 2014
A new method, combining KTH model with geometrical model (General solution model by Chou) to estimate viscosity of some ternary silicate slags, was proposed in this work.
Shu Q., Wang L., Chou K.C.
doaj   +1 more source

Ceramic Particle‐Reinforced Medium‐Entropy Alloys With Outstanding Mechanical Properties Prepared by Novel Micro‐LPBF

open access: yesAdvanced Functional Materials, EarlyView.
An innovative medium entropy alloy (MEA) composite material was fabricated via micro laser powder bed fusion (μ‐LPBF) with appropriate nano‐ceramic particles doping and exhibited markedly improved overall performance, including synergistically enhanced strength and ductility, increased hardness and compressive strength, improved wear resistance and ...
Zhonglin Shen, Mingwang Fu
wiley   +1 more source

Pengaruh Temperatur Terhadap Kinerja Sel Pembangkit Listrik Direct Methanol (DMFC)

open access: yesJurnal Elkomika
ABSTRAK Penelitian ini bertujuan menjelaskan prinsip-prinsip termodinamika-elektrokimia pada sel pembangkit listrik Direct Methanol Fuel Cell (DMFC).
MAYA RAMADIANTI MUSADI   +2 more
doaj   +1 more source

Improving the efficiency of extended ensemble simulations: The accelerated weight histogram method

open access: yes, 2012
We propose a method for efficient simulations in extended ensembles, useful, e.g., for the study of problems with complex energy landscapes and for free energy calculations.
Lidmar, Jack
core   +1 more source

From Single Atoms to Nanoparticles: Pathways Toward Efficient and Durable Pt/TiO2 Photocatalysts

open access: yesAdvanced Functional Materials, EarlyView.
Platinum single atoms on TiO2 nanosheets evolve into clusters and nanoparticles under ethanol photoreforming and thermal treatments. By controlling deposition and post‐treatments, particle size and location on specific facets are modulated. The study reveals how stability pathways determine efficiency, guiding the design of more durable photocatalysts.
Juan José Delgado   +6 more
wiley   +1 more source

A Modified Gibbs Free Energy Minimisation Model for Fluid Bed Coal Gasification

open access: yesChemical and Process Engineering, 2015
A modified approach to equilibrium modelling of coal gasification is presented, based on global thermodynamic analysis of both homogeneous and heterogeneous reactions occurring during a gasification process conducted in a circulating fluid bed reactor ...
Ściążko Marek, Stępień Leszek
doaj   +1 more source

Self‐Refreshing Bi‐Based Active Sites for Efficient and Durable Electrochemical CO2 Reduction

open access: yesAdvanced Functional Materials, EarlyView.
A self‐refreshing Bi‐based catalyst is developed through the fabrication of a novel basic bismuth nitrate pre‐catalyst, which exhibits differential active sites of Bi2O2CO3 at low potentials and metallic Bi phases at high potentials, self‐repairing capability, and thus wide‐potential‐window efficiency and ultralong durability toward electrochemical CO2
Yuxuan Xiao   +7 more
wiley   +1 more source

DFT Investigation of Hydrogen Atom Abstraction from NHC-Boranes by Methyl, Ethyl and Cyanomethyl Radicals—Composition and Correlation Analysis of Kinetic Barriers

open access: yesMolecules, 2020
Understanding the hydrogen atom abstraction (HAA) reactions of N-heterocyclic carbene (NHC)-boranes is essential for extending the practical applications of boron chemistry.
Hong-jie Qu   +4 more
doaj   +1 more source

Free energy density for mean field perturbation of states of a one-dimensional spin chain

open access: yes, 2008
Motivated by recent developments on large deviations in states of the spin chain, we reconsider the work of Petz, Raggio and Verbeure in 1989 on the variational expression of free energy density in the presence of a mean field type perturbation.
Accardi L.   +12 more
core   +2 more sources

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