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Showing 1 to 12 of 12 for “"Magnesium Oxide (MgO)"”.
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Exploration of the Endothermic and Exothermic Reactions of Calcium Oxide and Magnesium Oxide and Design of a Vessel for a Thermochemical Heat Storage System
… is a thermochemical reaction involving metal oxides such the calcium oxide (CaO) or magnesium oxide (MgO) and water. In the output mode, an exothermic reaction is initiated when liquid water or steam is injected into the metal oxide particle bed to produce Ca(OH)2 or Mg(OH)2. The heat …
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Acid Leaching of SHS Produced MgO/TiB2
… Synthesis (SHS) thermite reaction involving magnesium oxide (MgO), titanium dioxide (TiO₂), and boron oxide (B₂O₃) forms titanium diboride (TiB₂) and MgO as final products. Selective acid leaching is used to remove the MgO leaving high purity TiB₂ powder. The SHS method to produce TiB₂ is …
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Surface and interface characterisation of high-k dielectric materials on silicon and III-V semiconductor substrates
Interface formation between high-k dielectric oxide materials and semiconductor surfaces is of critical importance to the development of the next generation of high speed semiconductor devices. This thesis investigates the deposition and characterisation of a range of candidate high-k materials on …
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Optimization of Struvite Recovery Utilizing Magnesium Oxide
Magnesium oxide (MgO) is a cost-effective and environmentally sustainable alternative to magnesium chloride (MgCl2) and sodium hydroxide (NaOH) used for sidestream struvite recovery from anaerobically digested supernatant (centrate) through the Pearl® process. MgO is produced from magnesite (MgCO3) …
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Nano-optical studies of superconducting nanowire single-photon detectors
… niobium nitride (NbN) nanowires fabricated on magnesium oxide (MgO) have been studied. The microscope system has allowed us to map the temporal response (timing jitter and output pulse timing delay) of constricted (non-uniform) SNSPDs. By fitting to a theoretical model, the variations in output …
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Design and Development of Novel Atomic Layer Deposition Equipment & Processes for Biomedical Applications
… done to produce ultra-thin films of Titanium dioxide (TiO2) or titania, magnesium oxide (MgO), titanium oxynitride(TiOxNy) and silver (Ag) metal. Each metal or oxide explored provided some enhancement to the underlying substrate in terms of hydrophobicity, cell response and osteointegration. The …
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Gastrointestinal acidity, protein and starch digestibility and amino acid absorption in ruminants fed a high-concentrate diet with limestone, magnesium oxide or defluorinated phosphate
… concentrate basal diet (800 g/d), basal + 1.5% magnesium oxide (MgO)(812 g/d), basal + 1.5% limestone (812 g/d) or basal + 3.0% limestone (824 g/d) to study the effect of·these minerals on intestinal pH, rumen fermentation, N balance, dry matter and crude protein digestibility (DMD, CPD), and …
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Growth and Characterisation studies of MgO and Mg silicate dielectric layers on Si and InP surfaces
This thesis investigates the suitability of magnesium oxide (MgO) and magnesium silicate as possible high-k dielectric materials on both silicon and indium phosphide (InP) surfaces. Given that the emphasis of this study was controlling the semiconductor/high-k interface formation, the principle …
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Development of seawater electrolysis with low-cost membranes for sustainable cement production and pretreatment
… used to selectively separate calcium (Ca2+) and magnesium (Mg2+) ions from seawater, precipitating them as calcium hydroxide (Ca(OH)2) and magnesium hydroxide (Mg(OH)2), respectively. These hydroxides can then be calcined into calcium oxide (CaO) and magnesium oxide (MgO), which are key raw …
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Metal oxide modified tubular ceramic membrane for the separation of oil-in-water emulsion.
… on modifying microporous asymmetric Aluminium Oxide (Al2O3) tubular ceramic membranes with metal oxides nanoparticles for surface wettability to improve hydrophilicity and increase O/W emulsion separation efficiency. A novelty material – Magnesium Oxide (MgO) - nanoparticles modified tubular …
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The Role of Reactive MgO as an Expansive Additive in the Shrinkage Reduction of Concrete
Hard-burnt magnesium oxide (MgO) has been successfully used in large volume concrete, mainly dam construction in China, for thermal shrinkage reduction since the 1970’s. At ~4% addition to the cement by weight, it is much simpler than conventional shrinkage measures and in particular, reduces the …
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Super-conformal coating and filling of high aspect ratio recessed structures by two-molecule CVD
… the superconformal coating effect for the CVD of MgO films using Mg(DMADB)2 as the precursor and H2O as the co-reactant at 220 °C. The growth kinetics on planar substrates fit to a first-order adsorption-reaction model. We use a diffusion-reaction formalism to derive a general theory of …