Results 31 to 40 of about 3,165,974 (241)

Tribological Properties of Nitrided Steels Lubricated with Fully Formulated Oils in Boundary Lubrication Condition

open access: yesTribology Online, 2018
Nitriding is one of the most popular heat treatments widely used in hydraulic sliding parts of automotive or construction machinery components. Since the nitrided steels shows great wear resistance due to its high hardness, it is widely applied to ...
Hiroto Aota   +5 more
doaj   +1 more source

Enhancing hot corrosion performance of NiCoCrAlY/AlSiY coating by arc enhanced glow discharge

open access: yesMaterials Letters: X, 2022
A promising arc enhanced glow discharge (AEGD) was developed to enhance hot corrosion resistance of NiCoCrAlY/AlSiY coating. The AlSiY layer exhibited loose texture accompanied by plenty of pores, which triggered the muti-scale diffusion of salt mixture ...
Guanming Xue   +7 more
doaj   +1 more source

Diffusion in Metals and Intermetallics: An Overview [PDF]

open access: yes, 2022
After a few remarks about the history of diffusion in solids we remind the reader to some basics of diffusion such as tracer diffusion, interdiffusion, high-diffusivity paths, and basic diffusion mechanism in solids.
Mehrer, Helmut
core   +1 more source

Electrochemical Impedance Spectroscopic Analysis of Diffusion-Layer Thickness Distribution Associated with Flagellar Motion of Volvox carteri

open access: yesElectrochemistry
Although electrochemical methods have been used to relate microbial motility with ionic or redox signals, the evaluation of diffusion-layer variations induced by such motility using electrochemical impedance spectroscopy (EIS) remains limited.
Isao SHITANDA   +3 more
doaj   +1 more source

Research Progress of Air Cathode in Microbial Fuel Cell System

open access: yes发电技术, 2019
Microbial fuel cell (MFC) is a new type of electricity-generating device that uses biomass-producing microorganisms to convert biomass energy into electrical energy through bioelectrochemical reactions, while degrading organic matter in sewage.
Ming ZHONG, Kexun LI, Gaosheng WEI
doaj   +1 more source

Investigations of heterogeneous diffusion based on the probability density of scaled squared displacements observed from single molecules in ultra-thin liquid films [PDF]

open access: yes, 2009
Diffusion processes in ultra-thin liquid films observed by video microscopy reveal a complex behavior. In contrast to homogeneous diffusion, dynamic and static heterogeneities are induced by layer transitions and compartments with differing diffusion ...
Heidernätsch, Mario   +3 more
core   +1 more source

Analytical Solutions and Computer Modeling of a Boundary Value Problem for a Nonstationary System of Nernst–Planck–Poisson Equations in a Diffusion Layer

open access: yesMathematics
This article proposes various new approximate analytical solutions of the boundary value problem for the non-stationary system of Nernst–Planck–Poisson (NPP) equations in the diffusion layer of an ideally selective ion-exchange membrane at overlimiting ...
Savva Kovalenko   +4 more
doaj   +1 more source

Influence of Heat Treatment on the Microstructural Changes of 22MnB5 Steel with an Oxidation-Resistant Al-Si Coating [PDF]

open access: yesArchives of Metallurgy and Materials
This study investigates the influence of heat treatment parameters during the industrial hot stamping process on the microstructure and phase composition of Al-Si coatings applied to 22MnB5 steel.
D. Kuc   +3 more
doaj   +1 more source

In-line digital holography for the study of localized corrosion and dynamic processes of electrochemical reactions [PDF]

open access: yesJournal of the Serbian Chemical Society, 2011
Digital holographic reconstruction has been used to map the transient concentration field within the diffusion layer, detect the dynamic processes of localized corrosion, such as pitting corrosion, crevice corrosion and scratch corrosion crack.
SHENHAO CHEN
doaj  

The effects of water and microstructure on the performance of polymer electrolyte fuel cells [PDF]

open access: yes, 2006
n this paper, we present a comprehensive non-isothermal, one-dimensional model of the cathode side of a Polymer Electrolyte Fuel Cell. We explicitly include the catalyst layer, gas diffusion layer and the membrane.
Shah, A.   +6 more
core   +1 more source

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