Essays about: "corundum"

Found 3 essays containing the word corundum.

  1. 1. A study of optical and structural properties of spin-coated V2O3 thin films on sapphire substrates

    University essay from Linköpings universitet/Institutionen för fysik, kemi och biologi

    Author : Jennifer Silander; [2022]
    Keywords : Optical properties; transmittance; FTIR spectrometry; scanning electron microscopy; x-ray diffraction; metal-insulator transition; crystalline material; sol-gel; spin-coating; vanadium oxide; infrared light;

    Abstract : Many transition metal oxides exhibit a Metal-Insulator Transition (MIT). This is an interesting phenomenon where the material undergoes a structural phase transition, and the electronic charge is redistributed in the crystal lattice. READ MORE

  3. 2. 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

  4. 3. Critical Assessment of the Mineralogical Collections at Uppsala University using Raman Spectroscopy

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Yuliya Zhuk; [2017]
    Keywords : Raman spectroscopy; gemmology; geology; mineralogy; Mineralogical Collectio; Ramanspektroskopi; gemologi; geologi; mineralogi; mineralogisk samling;

    Abstract : The technique of Raman spectroscopy was applied in order to identify and characterize the number of minerals in the mineralogical collection at the Department of Earth Sciences. The collection was broadened with five rare carbonates borrowed from the collection of the Swedish Museum of Natural History in Stockholm. READ MORE