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Changing Landscape Coatings for Bioactive Bone Fixation Implants via Flame Spray Deposition
DownloadFall 2013
Owing to the bio-inert nature of load-bearing alloys and the brittle nature of bioactive materials there is a need to develop a composite bioactive material suitable for load-bearing applications. To fulfill this need, a new composite coating of a load-bearing alloy and a resorbable bioactive...
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Development of a Multi-material Extruder System to 3D Print Hard Thermoplastics, Soft Elastomers and Liquid Metals
DownloadSpring 2019
Functional sensors often consist of rigid parts, soft rubber-like parts, and mechanically tunable electronic components. As part of a larger project to 3D print tunable antennas, it was tasked to develop a printer that could directly produce 3D stretchable electronics with soft and hard...
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Localized Surface Modification of High Strength Aluminum Alloys using Cold Spraying and Friction Stir Processing
DownloadFall 2021
Dimensional restoration and repair methodologies for cold-worked aluminum (Al) alloys are very limited due to strength degradation that occurs during heat application in the process. For example, friction stir processing (FSP) is a well-documented repair methodology for various alloys, but it...
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On the Mechanical Properties and Failure of Low-Pressure Cold-Sprayed Tungsten Carbide-Nickel Metal Matrix Composite Coatings
DownloadFall 2019
Tungsten carbide-Nickel (WC-Ni) metal matrix coatings (MMC) were fabricated using a low-pressure cold spray unit. The coatings were designed according to 50, 71, and 92 weight percentages of WC in the feedstock powder. These coatings were subsequently prepared for uni-axial quasi-static tensile...
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Towards optimization of thickness, hardness, and porosity of low-pressure cold sprayed WC-Ni coatings.
Download2021-01-01
Jibran, Wania, Hogan, James D., McDonald, André
In this study, a 33 full factorial design methodology was used to analyze the effects of spray parameters on the thickness, hardness, and surface porosity of low-pressure cold-sprayed WC-17Ni coatings. Three levels were selected for the spray parameters included in the design which were the...