Results 31 to 40 of about 102,672 (281)

A Fully Differential CMOS Potentiostat [PDF]

open access: yes, 2009
A CMOS potentiostat for chemical sensing in a noisy environment is presented. The potentiostat measures bidirectional electrochemical redox currents proportional to the concentration of a chemical down to pico-ampere range.
Genov, Roman, Nazari, Meisam Honarvar
core   +1 more source

Transient Analysis of Electrochemical Noise for 316 and Duplex 2205 Stainless Steels Under Pitting Corrosion

open access: yesInternational Journal of Electrochemical Science, 2011
The use of electrochemical noise (EN) technique for the investigation and monitoring of corrosion has allowed many interesting advances in the corrosion science in recent years.
F.H. Estupiñán-López   +6 more
doaj   +1 more source

Electrochemical Impedance Imaging via the Distribution of Diffusion Times [PDF]

open access: yes, 2017
We develop a mathematical framework to analyze electrochemical impedance spectra in terms of a distribution of diffusion times (DDT) for a parallel array of random finite-length Warburg (diffusion) or Gerischer (reaction-diffusion) circuit elements.
Bazant, Martin Z., Song, Juhyun
core   +2 more sources

Asymmetry of the excess finite-frequency noise

open access: yes, 2009
We consider finite frequency noise in a mesoscopic system with arbitrary interactions, connected to many terminals kept at finite electrochemical potentials.
Giovanni Basso, I. Safi, Massimo Macucci
core   +1 more source

A Nonlinear Least Squares Fit procedure for analysis of immittance data of electrochemical systems [PDF]

open access: yes, 1986
A Nonlinear Least Squares Fit (NLLSF) program is described, with which frequency dispersion data of electrochemical systems can be analyzed in terms of an equivalent circuit.
Boukamp, Bernard A.
core   +3 more sources

Use of Electrochemical Noise for the Study of Corrosion by Passivated CUSTOM 450 and AM 350 Stainless Steels

open access: yesMetals
Precipitation-hardening stainless steels, like AM 350 and Custom 450, are extensively utilized in various aerospace applications. The latter steel is utilized for applications needing great strength and corrosion resistance. In contrast, the former steel
Facundo Almeraya-Calderon   +10 more
doaj   +1 more source

Detection of electrode asymmetry in electrochemical noise analysis [PDF]

open access: yes, 2001
The electrochemical noise resistance is a calculation that can be used for estimating the rate of corrosion of a pair of metal samples purely from the electrochemical noise that they generate.
Eren, H., Fung, C.C., Lowe, A.
core   +1 more source

Effects of Carbon Nanoparticles on Triboelectro‐Induced Surface Defects

open access: yesAdvanced Engineering Materials, EarlyView.
Carbon nanoparticles added to grease modify the electrocontact behavior. The synergy of particle concentration and electric current dominates the surface damage of metals in contact. Electrical surface damage caused by current leakage is a critical challenge in high‐performance applications such as electric vehicle (EV) drivetrains and wind turbine ...
Mohsen Tajedini   +6 more
wiley   +1 more source

Corrosion and Serration Behaviors of TiZr0.5NbCr0.5VxMoy High Entropy Alloys in Aqueous Environments

open access: yesMetals, 2014
The corrosion and serration behaviors of TiZr0.5NbCr0.5, TiZr0.5NbCr0.5V and TiZr0.5NbCr0.5Mo high entropy alloys (HEAs) in NaCl and H2SO4 solutions were studied by potentiodynamic polarizations (PP) and immersion tests.
Jiemin Li   +3 more
doaj   +1 more source

Shot noise induced charge and potential fluctuations of edge states in proximity of a gate

open access: yes, 1999
We evaluate the RC-time of edge states capacitively coupled to a gate located away from a QPC which allows for partial transmission of an edge channel. At long times or low frequencies the RC-time governs the relaxation of charge and current and governs ...
Buttiker, Markus
core   +3 more sources

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