Essays about: "Al2O3"

Showing result 31 - 35 of 74 essays containing the word Al2O3.

  1. 31. Design, Fabrication and Validation of High-permittivity Low-loss Microwave Material for Biomedical Sensor

    University essay from Uppsala universitet/Fasta tillståndets elektronik

    Author : Jasmin Gasi; [2018]
    Keywords : Biomedical; high dielectric constant; low loss dielectric; sensors; sin-tering; open ended coaxial probe; open ended circular waveguide; tita-nium dioxide;

    Abstract : Abstract The purpose of this task is to synthesize a dielectric substrate material through a sintering process, which can be used for non-invasive physiological sensor development. Low loss, high dielectric constant ceramic material is used. READ MORE

  3. 32. Point source carbon capture by porous inorganic carbonates

    University essay from Uppsala universitet/Nanoteknologi och funktionella material

    Author : Jonas Hultberg; [2018]
    Keywords : Carbon capture; Gas separation; Adsorbent; Inorganic carbonates; Point source; Carbon dioxide; Kolavskiljning; Adsorbenter; Oorganiska karbonater; Punktkälla; Koldioxid;

    Abstract : Mesoporous inorganic carbonates (MIC) was synthesized and tested as adsorbents for CO2, using vacuum and temperature swing adsorption. Mesoporous magnesium carbonate (MMC), mesoporous calcium carbonate (MCC) and mesoporous calcium magnesium carbonate (MCMC), all included in MIC, are exceedingly porous with an amorphous structure. READ MORE

  4. 33. Identification Methods of Sri Lankan Corundum in Comparison to Other Common Gemstones

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Axel Kilbo Pehrson; [2017]
    Keywords : identification; Sri Lanka; corundum; gemstones; identifikation; Sri Lanka; Korund; ädelstenar;

    Abstract : Sri Lanka is one of the leading countries in export of high quality corundum (Al2O3) gemstones due to the Precambrian rocks geological background. Combined highgrade metamorphic silicates and carbonate rocks makes perfect conditions for crystallization of this mineral. READ MORE

  5. 34. Investigation of new materials and methods to reduce corrosion of stainless steel in contact with molten chloride salts.

    University essay from Luleå tekniska universitet/Materialvetenskap

    Author : Clara Linder; [2017]
    Keywords : Corrosion; chloride salts; stainless steel; zirconium;

    Abstract : In this study, the corrosion resistance of three different stainless steels (304, 316 and 309) towards eutectic chloride salts is investigated. The performances of two materials to reduce the corrosion of the steels are examined: zirconium as sacrificial anode and an Al2O3 coating deposited by flame spraying. READ MORE

  6. 35. Preparation, characterization and testing of model catalysts for CO oxidation and CO2 hydrogenation

    University essay from Lunds universitet/Fysiska institutionen; Lunds universitet/Synkrotronljusfysik

    Author : Stefano Albertin; [2017]
    Keywords : Surface science; Rhodium; Nanoparticles; Catalysis; CO2; Physics and Astronomy;

    Abstract : A joint research between Lund University and Chalmers Competence Centre for Catalysis have shown promising results for a Rh-based catalyst for CO2 hydrogenation catalytic applications. The original catalyst consisted of a dispersion of nanoparticles onto a porous 3D oxide network. READ MORE