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 20 of 2095 for “"coating"”.
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Coating of catalyst supports: links between slurry characteristics, coating process and final coating quality
… homogeneity of the platinum group metal (PGM) coating onto the monolith block, to maximise catalytic performance for a minimum PGM loading, is therefore paramount. In this study, an automatic film application is used for coating γ–alumina slurries onto Fecralloy®, an integral component of …
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Surface coating deterioration studies
… is concerned with the deterioration of surface coatings as a result of weathering and exposure to a pollutant gas (in this case nitric oxide). Poly(vinyl chloride) (PVC) plastisol surface coatings have been exposed to natural and artificial weathering and a comparison of the effects of these two …
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Simulation and modeling of magnetically-assisted impaction coating (MAIC) process for dry particle coating
… time scales in magnetically assisted impaction coating process. The smallest length scale is of the order of the molecular size and is important because during collisions the molecules rearrange themselves to form a semi-permanent bond between the core and secondary particles, which is studied …
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A new coating method for semiconductor lithography : fluid layer overlap in extrusion-spin coating
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1997.
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Tri-helical direct gravure coating
Tri-helical, gravure roll coating, operated in reverse mode, is investigated via a combined experimental, theoretical and computational approach. New experiments were conducted on a pilot coating rig, designed to simulate the industrial process. Flow visualisations reveal the underlying flow …
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Understanding particulate coating microstructure development.
… suspended in a solvent dries into a solid coating often is more important to the final coating quality than even its composition. Essential properties like porosity, strength, gloss, particulate order, and concentration gradients are all determined by the way the particles come together as …
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Nanocomposite Coating Mechanics via Piezospectroscopy
Coatings utilizing the piezospectroscopic (PS) effect of alpha alumina could enable on the fly stress sensing for structural health monitoring applications. While the PS effect has been historically utilized in several applications, here by distributing the photo-luminescent material in …
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Development of new coating alloys
… sacrificial corrosion protection, Zn-based coatings are applied to these carbon steels via hot-dip galvanizing (HDG). However, the high temperatures involved in HDG (460 °C) can undesirably alter the microstructure of substrate steels. Therefore, the study introduces novel coating alloys …
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The study of a drug coating applied using a cold atmospheric plasma: everolimus coating properties
Coating medical devices with active pharmaceutical ingredients (APIs) such as everolimus is commonly used for therapeutic purposes such as reducing inflammatory responses and preventing restenosis in cardiovascular stents. Traditional coating methods like dipping and spraying require lengthy drying …
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Modeling and analysis of extrusion-spin coating : an efficient and deterministic photoresist coating method in microlithography
… of 5 [angstroms] for advanced chips. Spin coating is the prevalent coating method to produce the required thickness and uniformity, but it typically wastes over 90% of the photoresist applied. A more efficient method needs to be developed for two reasons. The first is that 80% of the …
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Coating Performance on Preservative Treated Wood
… can be reduced by the application of a coating; however, the effectiveness of the coating depends on its characteristics, especially its compatibility with preservative treated wood. In this project, the performance characteristics of semitransparent deck stains were evaluated for …
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Adhesion of coating to broiler drumsticks
Typescript (photocopy).
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Adhesion of coating to broiler drumsticks
Typescript (photocopy).
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Annealing effects on platinum coating morphology
… Due to a huge application field, the metallic coatings and platinum coated systems in particular, has been studied extensively. Metallic platinum is important for many industrial applications and the demand has increased considerably in the past decade, particularly in applications such as …
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Coating and Doping of Ge QDs
… during synthesis were unsuccessful. The silica coating of these particles was successful using a modified Stöber method. Monodispersed silica nanoparticles 20 nm in diameter were synthesized with Ge QDs as seeds. The resulting structures comprise of Ge QD core within a silica sphere. Films of …
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Optimization of antimicrobial chitosan coating for silicone
… be achieved with antibacterial, biocompatible coatings that resist bacterial adhesion, colonization, and biofilm growth. The current project focused on developing antimicrobial coatings, based on chitosan, for silicone elastomers, a common material in implants and other medical devices. …
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ELECTROSPINNING ROBOT FOR REGENERATIVE COATING OF IMPLANTS
… a robotic control system to enable custom coatings of arbitrary surfaces. By augmenting the traditional electrospinning system with a three-dimensional robotic control system, electric field focusing fibers, and additional aerodynamic forces terms ‘electroblowing’, the device can be …
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An experimental investigation of roll coating phenomena
… appear to have escaped the attention of the Coating Community at large prior to the research work reported here being carried out. A detailed description of how the key features of an industrial roll coater can be reproduced using a piece of simple but well designed experimental apparatus, …
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Nanoparticle formation and coating using supercritical fluids
… for drug delivery systems. Fine particle coating and encapsulations using supercritical fluids. In certain applications, particle surfaces need to be modified or functionalized by coating them with another material to serve a specific purpose. As nanoparticles are extremely cohesive, it is …
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