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 13 of 13 for “"metal plating"”.
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Quasi-static tearing tests of metal plating
Thesis (S.M. in Naval Architecture and Marine Engineering)--Massachusetts Institute of Technology, Dept. of Ocean Engineering; and, (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2002.
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The effect of carbonate concentration in cyanide metal plating solutions
… in copper, cadmium, silver, and gold cyanide plating solutions on the properties of the deposits and the plating range. A 267 milliliter Hull cell was used to investigate this problem. By using this apparatus the concentration of carbonate could be readily changed, and the effect which the …
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Creating Complex Hollow Metal Geometries Using Additive Manufacturing and Metal Plating
… process to produce complex, hollow, metal geometries. The developed process uses electroless nickel plating on laser sintered parts that then undergo a flash burnout procedure to remove the polymer, leaving a complex, hollow, metal part. The resulting geometries cannot be produced …
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Adaptation of an Activated Sludge Process to the Treatment of Coke-Plant Wastewater Containing High Levels of Cyanide.
… particularly those involved in steel production, metal plating, coal gasification and in the manufacture of chemicals, plastics and pharmaceuticals. Because of its toxicity, cyanide is generally removed from wastewaters by chemical and physical methods, including alkaline chlorination, …
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Toxic Metal Concentration and Distribution in Soils of Four Abandoned Landfill Sites, Springfield, Missouri
… surface water contamination by leachate. Toxic metals are present in the landfills from the disposal of everyday household items, and the two more recently abandoned Springfield landfills were the recipients of waste from a metal plating industry in the city. The landfill soils were tested by …
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Concentrations of Selected Metals in Benthic Algae From the Headwaters Region of Crane Creek, Stone County, Missouri
… flame atomic absorption spectrophotometry. Mean metal levels in algae from the two tributaries were compared using t-tests to determine if the main tributary was receiving higher levels of metals from a liquid metal plating waste dump site than the secondary tributary. Tests showed no significant …
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Measurement of light capture in solar cells from silver- and tin-plated patterned bus bars
… greater improvement by using higher reflectivity metal plating on the bus bars. Silver is the most reflective of all metals, but is also very expensive. We tested to see if silver would actually be as reflective as published values and if silver could redirect a substantial amount of light using …
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Investigating electrochemical reduction processes via in situ enhanced Raman spectroscopy for carbon dioxide conversion and copper deposition
… energy storage, catalysis, sensing, and metal plating. In order to probe the behavior of chemical species at the electrochemical interface, in situ spectroelectrochemical methods have been developed. In particular, in situ surface-enhanced and shell-isolated, nanoparticle-enhanced Raman …
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Understanding surface reactivity, local structure, and lithium-metal dendrite initiation in garnet solid electrolytes
… is presented and a method to achieve a lithium metal - LLZO interface with low resistance is devised. The local structure of dopants in LLZO is clarified using ²⁷Al and ⁷¹Ga magic angle spinning magnetic resonance (MAS NMR) spectroscopy on LLZO and model compounds. The side-products on the …
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Electrochemical Pathways to Decarbonizing Urea and Ammonia Production
… synthesis (LiMAS) was investigated. Lithium metal spontaneously reacts with N₂ to form lithium nitride (Li₃N), which can subsequently be protonated to yield NH₃. A non-aqueous electrochemical system was developed and optimized by varying the lithium salt (e.g., LiClO₄ vs. LiBF₄), current …
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Study of Interfacial Chemical Reactions on Battery Electrodes Using Operando Imaging Techniques
For lithium (Li)-ion batteries (LIBs) and Li metal batteries (LMBs), the quality of the solid-electrolyte interphase (SEI) determines the battery's performance. However, the understanding of SEI formation and evolution processes across the electrode interface is still limited due to the lack of …
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Investigation on the Mechanism of Electrocodeposition and the Structure-Properties Correlation of Nickel Nanocomposites
… is the electrocodeposition (ECD) process from metal plating baths containing dispersed nanoparticles. By using this technique, a broad range of substrate sizes and shapes can be coated cost-effectively. However, the prediction of the amount as well the distribution of nanoparticles within the …
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Structural Modification of Interfaces for Sustainable High-Performance Batteries
Lithium-sulfur batteries (LSBs) are considered a particularly promising powerful and sustainable storage technology, as they offer high theoretical energy density, use cost-effective and environmentally friendly materials. Despite their potential, major technical challenges remain for practical …