Sökning: "vanadium oxide"

Hittade 4 uppsatser innehållade orden vanadium oxide.

  1. 1. The Fe-oxides (mineralogical, chemical, and textural) variation in the Leveäniemi deposit using micro-analytical tools for unraveling of primary features and metamorphic recrystallisation

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Författare :Adrian Larsson; [2022]
    Nyckelord :Leveäniemi; Magnetite; Hematite; Iron oxides; Iron oxide apatite;

    Sammanfattning : The Leveäniemi iron oxide apatite (IOA) deposit, mined by LKAB, is located in Norrbotten, northern Sweden. The deposit has a partially more complex mineralogy than the neighbouring and more famous IOA deposits of Kiirunavaara and Malmberget. LÄS MER

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

    Master-uppsats, Linköpings universitet/Institutionen för fysik, kemi och biologi

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

    Sammanfattning : 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. LÄS MER

  4. 3. Primary Study of the Phase Relationship in the MgO-"V2O3" System at 1873 K and pO2=10-11 atm

    Kandidat-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Line Larby; Annie Lundberg; [2018]
    Nyckelord :;

    Sammanfattning : Vanadium can be found in some iron ores as an impurity. Since vanadium is a valuable alloy element there lies an interest in development of a stable and economic way for extraction of it. For this, knowledge about the thermodynamics behind the V-O system combined with other elements, like Mg, is indispensable. LÄS MER

  5. 4. Nanostructured Cathodes : A step on the path towards a fully interdigitated 3-D microbattery

    Uppsats för yrkesexamina på avancerad nivå, Oorganisk kemi

    Författare :David Rehnlund; [2011]
    Nyckelord :Nanostructure; Lithium ion battery; microbattery; cathode;

    Sammanfattning : The Li-ion field of battery research has in the latest decades made substantial progress and is seen to be the most promising battery technology due to the high volume and specific energy densities of Li-ion batteries. However, in order to achieve a battery capable of competing with the energy density of a combustion engine, further research into new electrode materials is required. LÄS MER