Sökning: "ZrO2"
Visar resultat 16 - 20 av 65 avhandlingar innehållade ordet ZrO2.
16. Preparation and characterization of sputtered metal oxides and nitrides for optical applications
Sammanfattning : Sputter deposited metal oxide and nitride thin films have been studied for energy-efficient window applications. Coatings, for both static and dynamic control of radiative heat transfer through windows, were optically characterized. As metal base in static solar selective coatings, semi-transparent TiN and ZrN films have been investigated. LÄS MER
17. Bi-based high Tc superconductors and enhancement of critical current density
Sammanfattning : Basic bulk high temperature superconductors in the Bi-Sr-Ca-Cu-O system and the BiPb-Sr-Ca-Cu-O system were prepared through the solid state reaction route and the coprecipitation method. The formation of 110 K phase promoted by partial Pb substitution for Bi was studied. Effects of heat treatment on 110K phase formation were studied. LÄS MER
18. Charge Transport in Transition Metal Oxide Thin Films and Electrochromic Devices
Sammanfattning : Thin film devices for windows, mirrors, space applications and other purposes, have become an essential part of modern technology. A great advantage with a thin film device is the small amount of material used and the compact volume of the device. LÄS MER
19. Structural Silicides - Processing, Microstructure and Toughening
Sammanfattning : Molybdenum disilicide is a promising candidate material for high temperature structural uses. However, its room-temperature toughness is rather low and has to be improved. The objective of this thesis is to improve the fracture toughness of MoSi2 by alloying and composite processes. LÄS MER
20. All-Thin-Film Electrochromic Devices for Optical and Thermal Modulation
Sammanfattning : The optical properties of electrochromic materials can be changed by application of an electrical voltage. The conventional electrochromic device consists of several thin films of electrochromic materials and layers for electron- and ion conduction. LÄS MER