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 95 for “"Film formation"”.
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Film Formation via Drying of Polymer Solutions
… skin and personal care products, to create thin films, is a process employed to deliver product-specific functions to targeted areas. Uniform, defect-free films are essential, as defects and instabilities can adversely affect product performance. To optimise product functionality, understanding …
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Mechanisms of transfer film formation on data recording heads
… dynamic behaviour of stains. A model of stain formation taking into account the channels of binder degradation and evolution upon different environmental conditions is proposed.
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Nanocrystal Synthesis and Thin Film Formation for Earth Abundant Photovoltaics
Providing access to on-demand energy at the global scale is a grand challenge of our time. The fabrication of solar cells from nanocrystal inks comprising earth abundant elements represents a scalable and sustainable photovoltaic technology with the potential to meet the global demand for …
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Structure and Property Evolution During Film Formation From Binary Colloidal Suspensions
… those used for aqueous tape casting of ceramic films.
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Role of Whey Protein Amyloid and Amyloid-Like Aggregates in Film Formation
… sowie deren isolierte Fraktionen bei der Filmbildung. Filme, als freistehende Folie oder essbares Coating, auf Basis gezielt strukturiertem Molkenproteinisolat (WPI), wurden hinsichtlich Konvektionstrocknung, Filmbildung und physikalisch-chemischer Materialeigenschaften untersucht. …
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Film formation on precious metal surfaces in the presence of epoxy resins
… resin composition, and resin treatment on film formation on metal surfaces exposed to epoxy resin. Epoxy rods were prepared from novolac hardened by 4-4' methylenedianiline (MDA). The curing and post curing temperatures were 60, 125 °C and 125, 160 °C. The composition of the epoxies used …
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OXIDE FILM FORMATION AND CONVERSION MECHANISM ON CARBON STEEL UNDER MILDLY BASIC CONDITIONS
… is to determine the mechanism of surface oxide film formation and conversion as a function of electrochemical and corrosion potential, using various electrochemical analysis techniques, such as cyclic voltammetry, potentiostatic film growth and electrochemical impedance spectroscopy. The …
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Anti-solvent precipitation and subsequent film formation of hydrophobic drugs for drug delivery
… phase while mixing with an anti-solvent. The formation, stabilization and sedimentation of these particles depend upon the discreet steps of nucleation, condensation and coagulation into larger particles. Nucleation and condensation tend to be competing factors as both consume solute …
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Studies of the growth of silicon and germanium overlayers: Surface, interface, and thin film formation
… reconstruction, atomic charge transfer, step formation, atomic structure and defects on the clean Si and Ge surfaces and the grown Si-on-Ge and Ge-on-Si overlayers were systematically studied. Adsorption mechanisms, surface species, chemical reactions, atomic composition and ordering, and film …
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Organic Self-Assembled Films for Nonlinear Optics: Film Structure, Composition and Kinetics of Film Formation
… polymers to build up layer-by-layer (LbL) films. The effect of solution pH on the formation of LbL films fabricated using the polycation poly(allylamine hydrochloride) (PAH) and the polyanion poly{1-[p-(3–-carboxy-4–-hydroxyphenylazo)benzenesulfonamido]-1,2-ethandiyl} (PCBS) was studied …
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Improved Organic Semiconductor Thin-Film Formation through the Addition of Vibrations to the Solution Shearing Method
… values and to increase the deposition speed and film uniformity of semiconductor films. The solution shearing method can be easily adapted to large-scale roll-to-roll fabrication, a low-cost and high throughput fabrication process. In this work, the fabrication of OFETs with both crystalline …
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Chalcogenide Sol-Gel Assembly: Controlling The Kinetics Of Nanocrystal Aggregation And Film Formation For Applications In Optoelectronics
… it is essential to fabricate gel materials in film form. The synthesis of transparent micron-thick xerogel films of CdSe/ZnS NCs was achieved by employing similar gelation conditions that resulted in transparent gel structures. Films were deposited by immersing a glass substrate horizontally in …
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Investigating the influence of film formation on the machining performance in an atomization-based cutting fluid spray system
… cutting fluid on the tool surface results in the formation of a thin liquid film that penetrates the narrow tool-chip contact region and improves tool life. The characteristics of the thin film such as the film thickness and velocity influence the performance of the ACF system and are dependent on …
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Modeling of the effects of lubricant chemistry on engine component wear and parametric analysis
… wear by forming a thin solid layer of antiwear film, and zinc dialkyldithiophosphate (ZDDP) is the most commonly used oil additive. There has been sufficient experimental effort in trying to understand the dynamics of ZDDP antiwear film formation and its effect on wear between engine components, …
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Crosslinked conventional size and nanoparticle size acrylic latexes and their blends: Investigation of the effects of crosslinking, particle size and distribution, glass transition temperature and blending on film formation, properties and morphology
… temperature (Tg), and blending on latex film formation process, properties and latex morphology. Films cast from these latexes were characterized using specific end use tests and fundamental properties using advanced instruments such as a dynamic mechanical analyzer (DMA), …
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Bacteria At Oil-Water Interfaces
… near hexadecane-water interfaces. I investigate films formed by Pseudomonas sp. P62 at initially pristine interfaces using particle tracking and pendant drop elastometry. Adhered bacteria colonize and form structures at the interface. The interface evolves via three mechanical and dynamical …
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An electrochemical and surface analytical investigation of iron oxidation, passivation and corrosion inhibition
… analytical study of iron oxidation, passive film formation and corrosion inhibitor interaction is presented. Ultrahigh vacuum surface analysis by Auger electron spectroscopy (AES), low energy electron diffraction (LEED), thermal desorption mass spectrometry (TDMS) and ion bombardment (depth …
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Vapor Transport Deposition for Perovskite Solar Cells
… as one of the potential routes for large-scale film growth of photoactive and charge transport layers for these solar cells. As a low-cost alternative to thermal evaporation, VTD has the potential to deposit organic and inorganic perovskite precursor materials either sequentially or via …
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Stress and microstructure development in particle-based coatings
… combination. Stress development in the film is directly related to the development of the coating microstructure during drying. Cryogenic scanning electron microscopy (cryoSEM) is a powerful characterization method capable of visualizing the microstructure of the coating during the …
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