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 14 of 14 for “"Fluxing"”.
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A self corrective vortex fluxing method for viscous fluid structure interaction problems
… with a panel method to design a new Vortex Fluxing scheme that uses no special treatment of flow properties at the boundary. It was found that the panel method is capable of correcting any spurious vorticity flux into the wall during the no slip boundary application. This enables highly …
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Designing a Membrane Module for Determining the Permeance of High Fluxing Membranes and the Testing RTIL-Membranes for Dehumidification.
Membrane-based gas dehumidification can have technical energy, and economical advantages over other dehumidification technologies. Because, it is simple to install, ease to operate, and take low process cost. Removal of water vapor from gases constitutes a significant expenditure of energy in our …
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A study into the fundamental understanding of iron-transformations and the effect of iron as fluxing agent on Highveld fine coal sources during gasification
… inhibited or even prevented by the addition of a fluxing agent. It is thus of great importance to understand the mineral interaction during gasification, in order to select a suitable fluxing agent for the prevention of slagging and clinker formation in the gasifier. The aim of this dissertation …
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Development of the porcelain tiles by the partial substitution of feldspar with fly ash
… study. Through XRF analysis, the presence of fluxing component in fly ash significantly proved its potential as fluxing agent in porcelain. The highest strength of the porcelain obtained at the replacement of 5 wt. % of fly ash sintered at 1250 °C concurrently shows it as the best composition …
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Dry pressed lightweight refractories from Virginia kyanite
… clay-kyanite-combustible ratio; (2) addition of fluxing and mineralizing materials; (3) variation in forming pressure; (4) variation in grain size of kyanite content; (5) effect of heat treatment; and (6) effect of forming characteristics on fire properties. The resilient property of …
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Quantifying potential industrial symbiosis : a case study of brick manufacturing
… from the use of processed glass cullet as a fluxing agent. Additionally, the analysis demonstrates that these economic benefits are connected to environmental benefit. The results of this case study indicate that the approach is not only feasible, but if it is transferable to other …
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Micro-led based optoelectronic tweezers
… a common indicator of cell activation (calcium fluxing) was also monitored over time showing the combined capabilities of this system. The creation of a novel, integrated micro-LED/OET device for the manipulation of live cells in a compact format is then reported. In this system, the direct …
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Role of Li and B bearing fluids in crystallization and alteration of granitic pegmatites, San Diego, California
… the more barren La Posta pegmatite suites. The fluxing properties of Li and B in melt, in particular, may be responsible for increasing water solubility in pegmatite melts, and therefore the development of large pockets that form by accumulation of aqueous fluids near centers of dikes. …
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A study of mechanochemical activation in solid-state synthesis of advanced ceramic composites
… milling) had a more glassy structure due to the fluxing effect of cerium oxide. Ceria was found to be effective in stabilisation of zirconia and reduction of the transformation to zircon. When ceria was added alone (4 wt%) to the precursor mixture, mechanochemical milling resulted in an increase …
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New approaches to casting hypereutectic Al-Si alloys to achieve simultaneous refinement of primary silicon and modification of eutectic silicon
… commercial purity Al-Si alloys. Removing Ca by fluxing with K2SiF6 prior to casting can improve the refinement and modification effect of Mg and Sb respectively. Effects of various inoculants were studied. Microstructural analysis showed that Mg and ZnS refined primary Si whereas MgO, CaO and …
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Corrosion by molten mixtures of sodium carbonate and vanadium pentoxide
… of vanadium pentoxide to the tetroxide, (2) fluxing of the initial products of corrosion by the slag, and (3) simultaneous additional oxidation of iron and further oxidation of ferrous oxide to ferrosoferric and ferric oxide. At intermediate temperatures, 670°C, step (2) controls the …
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Processing and Characterization of Device Solder Interconnection and Module Attachment for Power Electronics Modules
… that the flux added to the preform had a higher fluxing action than the flux contained in the solder paste. On the other hand, the outgassing of the entrapped flux profoundly affects the void formation and a lower void content indicates a lesser amount of trapped flux. In the case of a solder …
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Phase equilibria studies and beneficiation of titaniferous slags
… in order to be able to implement a suitable fluxing strategy for the production of a treatable titaniferous slag with no inert spinel phase. The available phase equilibria data established in air for titaniferous slags is inconclusive about the possible crystallisation of the detrimental …
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Stable isotopic insight into pelagic carbon cycling in Loch Lomond: a large, temperate latitude lake.
… thus producing excess CO2, and potentially fluxing CO2 to the atmosphere.