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Skip to Search Results- 1Ashrafizadeh, Sayed Hossein
- 1Bhushan, Vivek
- 1Borle, Steven D
- 1Fisher, Gary
- 1Guest, Stuart Dan
- 1Hogan, James D.
- 4Li, Dongyang (Chemical and Materials Engineering)
- 3Mendez, Patricio (Chemical and Materials Engineering)
- 1Andre McDonald (Mechanical Engineering, University of Alberta)
- 1Brian Fleck (Mechanical Engineering)
- 1Dr. M.G.Lipsett (Mechanical Engineering)
- 1Dr. Patricio Mendez (Chemical and Materials Engineering)
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Fall 2011
Various pressures of compressed air were introduced into the flame spraying torch and the protective coatings of nanostructured and conventional titania (TiO2) were deposited on low carbon steel substrates. Performance of the coatings was studied using scanning electron microscopy (SEM), hardness...
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Spring 2011
Flotation process is mineral processing technique used for separating valuable minerals from the gangue. The research presented in this thesis deals with assessing features that can help in measuring the performance (observing) bitumen flotation process and modeling damage in flotation units. A...
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Fall 2011
A calorimeter for the deposition of metal during free-flight GMAW was developed for the purpose of measuring droplet heat content in Ni/WC tubular wires. By approximating the thermal gradients within the calorimeter to be second order polynomials the energy transferred to the calorimeter by the...
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Spring 2012
This work is focused on development of tungsten carbide-based materials as alternative anodes for direct utilization of methane in solid oxide fuel cells (SOFCs). Not only were the capabilities of the anodes highlighted, but the challenges were also stressed. First, the impact of porous support...
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Studies on the improvement in wear resistance of WC-Co composites by adding a pseudo-elastic TiNi phase and relevant issues
DownloadSpring 2012
In this study, pseudo-elastic TiNi alloy was added as a second phase to the Co matrix of WC-Co composite, which has found many applications in forms of coating, hardfacing overlay and bulk against wear. It was demonstrated that the added TiNi phase markedly enhanced the wear resistance of...
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Fall 2013
Hydraulic transport is commonly employed in the mining industry to transport crushed ore to a processing facility. Dense slurry flows inflict heavy wear on pipes, leading to significant process downtime and loss of revenue. Several factors have been identified as key contributors to pipe wear. ...
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Microstructural Characterization of Chromium Carbide Overlays and a Study of Alternative Welding Processes for Industrial Wear Applications
DownloadSpring 2014
Microstructural features of chromium carbide overlays (CCOs) were examined in this work. It was found that the microstructures can contain unmelted alloy powders. It was also shown that the structures of the primary M7C3 carbides are long hexagonal rods. Change in the microstructure from the top...
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Spring 2014
Seven Ni-WC tubular wires utilized in this study were characterized by the nickel sheath area, powder composition, and overall initial carbide volume fraction of the wire prior to welding. The electrical resistivity of steel, stainless steel, and Ni-WC welding consumables were measured from...
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Fall 2015
Mechanical, tribological and corrosion properties of metallic materials are of significance to their industrial applications and have been studied for long time. Efforts are continuously made to correlate these properties to more fundamental parameters in order to effectively improve the...
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Evaluation and Analysis of the Erosion Performance of Flame Spray-Coated Polyurethane Liners
DownloadFall 2016
Polyurethane has excellent wear resistance and is an effective protective liner against erosion caused by the impact of solid particles. However, similar to most polymeric materials, polyurethane has low thermal and electrical conductivity, and this limits its applicability for use in...