Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 10 of 10 for “"Anodic current"”.
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Corrosion And Wear Resistance Of Titanium- And Aluminum- Based Metal Matrix Composites Fabricated By Direct Metal Laser Deposition
… 7075 and AA 5083. The MMCs showed an increase in anodic current density indicating the formation of a less protective surface oxide than the base metals.</p>
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The anodic behavior of zinc in aqueous salt solutions
… recent years.</p> <p>The basic mechanism of the anodic dissolution of metals such as zinc, cadmium, and magnesium in salt solution is not completely known. Many mechanisms have been proposed by different investigators but evidence is still lacking which would allow one to draw reliable …
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Galvanic Lead Corrosion in Potable Water: Mechanisms, Water Quality Impacts, and Practical Implications
… (Pb, Sn) and copper. If the resulting galvanic current exceeds about 2 µA/cm², a highly corrosive microenvironment can form at the solder surface, with pH <2.5 and chloride concentrations 11 times higher than bulk water levels. Waters with relatively high chloride tend to sustain high galvanic …
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Microbial Biofilm Development and Electron Transfer in Electrochemical Systems
… with regards to performance, electrical current generation, and microbial coverage and biofilm development. A better understanding of how anode surface properties affect growth, development, and activity of electrogenic biofilms has great potential to improve the performance of …
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Effects of structural repair and strengthening on stiffness and ultimate capacity of corrosion-damaged RC beams
… accelerated corrosion (using 1000 mA impressed anodic current and 5% NaCl solution) under sustained service loads (2 kN) while one beam acted as a control. All four beams were monitored for deflections during the accelerated corrosion period. The beam dynamic characteristics were assessed at all …
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Electrical current generation by wild type and mutant Shewanella strains
… chamber electrochemical cells to show that the current generation capabilities of Shewanella oneidensis are dependent on the ability of cells comprising a biofilm to shuttle soluble electron carriers between an electrode and its outer membrane cytochromes. The extracellular electron transfer …
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Discrete sacrificial anodes and their use in service life extension of chloride contaminated reinforced concrete structures
… RC structures needing repair is increasing. Currently, the South African concrete repair industry mainly relies on the application of patch repairs and corrosion inhibitors while other potentially successful methods such as sacrificial anodes are rarely applied. Sacrificial anode cathodic …
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Electrochemical energy conversion using metal hydrides hydrogen storage materials
… The voltammograms obtained displayed the anodic current peak at -0.64V to -0.65V for the Pt and Pd modified electrodes, respectively. Furthermore, the electrode which was not coated with Pt or Pd the current peak occurred at -0.59V. The Pd and Pt coated alloy electrodes represented lower …
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Voltage Effects on Cells Cultured On Metallic Biomedical Implants
… mV voltage steps to samples, and the time-based current transients were recorded. A new equation was derived based on capacitive discharge through a Tafel element and generalized to deal with non-ideal impedance behavior. The new function compared to the KWW-Randles function, better matched the …
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Molecular-level interphase design for sustainable batteries
… decreased based upon the replacement of the anodic current collector from Cu to a much cheaper and lighter Al. However, SEI dissolution is much more severe in NIBs than in LIBs, leading to low Na reversibility and poor utilization of Na. The first part in chapter 3 builds a direct correlation …