Sökning: "thermochromic"

Hittade 5 uppsatser innehållade ordet thermochromic.

  1. 1. 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

  3. 2. Experimental Study of Heat Transfer Coefficient and Film Cooling Effectiveness

    Master-uppsats, KTH/Energiteknik

    Författare :Ke Li; [2019]
    Nyckelord :;

    Sammanfattning : This thesis investigates the possibility to evaluate the film cooling thermal performance on flat plate using Thermochromic Liquid Crystal. After an introduction of the basic concept and background of gas turbine blades film cooling and Thermochromic Liquid Crystal, a thorough explanation of four methods is presented. LÄS MER

  4. 3. How to get changing patterns on a textile surface by using thermo chromic pigments and an inherently conductive polymer

    Magister-uppsats, Högskolan i Borås/Institutionen Textilhögskolan

    Författare :Laleh Maleki; [2013]
    Nyckelord :Thermochromic pigment; PEDOT:PSS; color changing effect;

    Sammanfattning : With regard to the recent interests in smart textiles,this research activity has been conducted with the aim of producing a pattern changing design on textiles. In order to fulfill the demands of such dynamic patterns a combinationof conductive polymer and thermochromic pigments wereused. LÄS MER

  5. 4. Impingement Cooling: Heat Transfer Measurement by Liquid Crystal Thermography

    Master-uppsats, Mekanisk värmeteori och strömningslära

    Författare :Muhammad Omer; [2010]
    Nyckelord :Gas Turbine Combustor Impingement Cooling Heat Transfer Coefficient Thermochromic Liquid Crystals TLC Thermography;

    Sammanfattning : In modern gas turbines parts of combustion chamber and turbine section are under heavy heat load, for example, the rotor inlet temperature is far higher than the melting point of the rotor blade material. These high temperatures causes thermal stresses in the material, therefore it is very important to cool the components for safe operation and to achieve desired component life. LÄS MER

  7. 5. VO2 films as active infrared shutters

    Magister-uppsats, Institutionen för fysik, kemi och biologi

    Författare :Daniel Johansson; [2006]
    Nyckelord :infrared; shutter; vanadium dioxide; VO2; thermochromic; resistive heating;

    Sammanfattning : An active optical shutter for infrared light (3-5 μm) has been designed, exploiting the phase transition in thermochromic vanadium dioxide (VO2). A spin coating processing route for VO2 films has been adapted to manufacture reproducible depositions onto sapphire (Al2O3) substrates. LÄS MER