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 22 for “"Organic additives"”.
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Localized adsorption of organic additives during copper electrodeposition
… localized fluorescence patterns of adsorbed organic agents and correlate such adsorption with the changes in surface morphology accompanying electrolysis. In solutions of 5 $\mu$M DiOC$\sb6$(3)/0.01 M $\rm H\sb2SO\sb4$ with and without 0.05 M CuSO$\sb4$, confocal imaging revealed that …
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In situ studies of copper electrodeposition in the presence of organic additives using atomic force microscopy
In the present study we investigated electrodeposition of Cu from sulfuric acid solutions. Three different substrates were used to investigate the effect of various variables on electrodeposition.
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In-Depth Study of Different Magnetorheological Fluid Properties Under Different Operating Parameters, and in Presence of Organic Additives
… surface coating and elastic SEBS bead additives to enhance MRF colloidal stability (measured using an in-built setup) and alter viscoelastic properties. respectively. Finally, MRF chain characteristics (the strength, speed, and structure of MRF chains) were also studied as a function of …
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Influence of additives on stabilization and mineralization pathway of amorphous calcium carbonate nanoparticles
… phase in various organisms. The presence of organic additives has been shown to affect the mineralization pathway in solution by either inhibiting the aggregation of ACC or stabilizing it. In this study, ACC was precipitated in solution within a poly (acrylic acid) (PAA) matrix. AFM imaging …
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ΗΛΕΚΤΡΟΛΥΤΙΚΗ ΑΠΟΘΕΣΗ ΝΙΚΕΛΙΟΥ ΜΕ ΧΡΗΣΗ ΠΑΛΜΙΚΟΥ ΡΕΥΜΑΤΟΣ ΜΕΤΑΒΑΛΛΟΜΕΝΗΣ ΦΟΡΑΣ
… WITH A MECHANISM ANALOGOUS TO THE ACTION OF ORGANIC ADDITIVES UNDER DIRECT CURRENT CONDITIONS. IN THIS WAY, P.R.C. TECHNIQUE REINFORCES THE SELECTIVE PERTURBATION PHENOMENA OF THE CRYSTAL GROWTH AND PERMITS THE PREPARATION OF SMOOTH AND HARD DEPOSITS IN THE ABSENCE OF ORGANIC ADDITIVES.
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Electrodeposition of Cobalt for Advanced Interconnect Applications
… It is can be achieved by adding small amounts of organic additives to the plating bath, which lead to the Co electrodeposition preferentially at the bottom of trench, known as bottom-up filling, or super conformal filling, or simply “super-filling”. As the size of interconnect continues to shrink, …
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Synthesis and properties of some electrolyte additives for lithium-ion batteries
… of safer lithium-ion power sources by using new organic additives to overcome the possible safety problems. In this study, the conformations and energies of several synthesized boronates were investigated through computational study using density functional theory (DFT) with the Becke’s …
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Linking the kinetics of formation and growth to the mechanical properties of calcium carbonate composites
… interactions between calcium carbonate and organic additives to direct the precipitation process through thermodynamic and kinetic pathways that yield mineral-organic complexes that are not only visually stunning but also highly functional. By carefully tuning the growth environment within …
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Charge Carrier Dynamics of Lead Halide Perovskites Probed with Ultrafast Spectroscopy
… materials is like that of highly-ordered inorganic crystalline semiconductors (exhibiting ballistic charge transport) or disordered molecular semiconductors (exhibiting strong electron-phonon coupling and highly localised excited states) and how we can tune these photophysical properties …
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Optimization of PZT processing using thermal ink-jet printing
… 360°C for 2 hours removes a sufficient amount of organic additives. There also exists a positive correlation for the duration of pyrolysis and the amount of desired perovskite phase crystal structure formed. The multi-layer printing has been experimented to remove the PZT voids in the sample. …
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Physicochemical Aspects of the Two-Step Mechanism of Nucleation in Protein Solutions
… contribute to clustering. We show that common organic additives used in crystallization increase cluster volume fraction and surface area. The tests of insulin protein solutions explain why the two-step mechanism of nucleation is selected. We develop a new spatial cross-correlation tracking …
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Of brick and 'chuna': Technological tradition and innovation at the Fort Cornwallis powder magazine in Penang, Malaysia
… sourced limestone, and potential presence of organic additives like jaggery water as well as lateritic clays and/or brick dust, evidencing a fusion of construction techniques. Ultimately, the powder magazine emerges as more than a simple military relic. It is a manifestation of colonial …
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Heterogeneous crystallisation of polyethylene terephthalate. A study of the influence of organic and inorganic additives on the rate of crystallisation of polyethylene terephthalate and the subsequent changes in morphology and mechanical properties.
The effect of various inorganic and organic additives as possible nucleating agents on the crystallisation behaviour of P. E. T. and the suosequent influence on the morphological and mechanical properties has been examined. Various methods of mixing(: the polymer and additive were investigated and …
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MPSA Effects on Copper Electrodeposition: Understanding Molecular Behavior at the Electrochemical Interface
… filling of copper chip interconnects, organic additives are used to bottom-up fill high-aspect ratio trenches or vias. I use molecular dynamics and rotating-disk-electrode experiments to provide insight into the function of MPSA, one such additive. It is concluded that the thiol head …
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Three-dimensional virus scaffolds for energy storage and microdevice applications
… that eliminate the need for conductive and organic additives will increase mass specific energy and power densities. The increased demand for lightweight power is coupled with increasing device miniaturization. As the scale of devices decreases, current battery technologies add mass on the …
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Copper and Copper Alloys: Studies of Additives
… copper sulfate electrolyte with a number of inorganic and organic constituents. Electrolyte enables filling of complex surface geometries with desired internal and surface properties. Continuing miniaturization of modern microelectronics requires a highly controlled electrodeposition process …
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In-situ study of the influence of additives on the growth behavior of copper electrodeposits on copper single crystal
<p>Trace organic additives are known to be essential in obtaining desired metal electrodeposits in the microelectronic industry, however, fundamental design principles for their use and a scientific understanding of their interaction during electrodeposition is lacking. In the present study we …
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Porosity control of alkali-activated aluminosilicates via functional alkoxysilane additives
… organo-silane supplements to improve adhesion to organic polymers and to modify porosity. Uncured geopolymer slurry was found to be miscible with various alkoxysilanes, and the resulting cured geopolymer strongly adhered to organic polymers if and only if the alkoxysilane possessed an appropriate …
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Molecular pathways of silica nanoparticle formation and biosilicification
… Icelandic geothermal areas showed that the inorganic silica precipitation rate was strongly influenced by temperature, pH, ionic strength, and silica concentration. In addition, the presence of thick biofilms seemed to have aided the precipitation process by simply providing "sticky" surfaces. …
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Aerosol Synthesis of Layered Oxide Cathodes Materials for Lithium-ion Batteries
… reacting gas orientation in the preheating zone, organic additives (urea), annealing temperature, time, and high oxygen flow rate were investigated. The optimized reactor design, featuring improved reacting gas flow, resulted in enhanced particle sphericity and excellent electrochemical …
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