Sökning: "Energy-filtered TEM"
Visar resultat 1 - 5 av 14 avhandlingar innehållade orden Energy-filtered TEM.
1. Evolution of Microstructure in Two Austenitic Alloys at High Temperatures
Sammanfattning : A niobium stabilised AISI 347 austenitic stainless steel was investigated after static ageing and creep deformation at temperatures between 500°C and 800°C for times up to 88 000 h. Coarse and fine NbX precipitates and also s-phase precipitates were formed in the temperature range 500-700°C. LÄS MER
2. Precipitation Reactions at High Temperatures in 9-12% Chromium Steels
Sammanfattning : This thesis reports on quantitative investigations of microstructural changes, mainly precipitation reactions, occurring during heat treatment, ageing and creep of 9-12% chromium steels. Several alloys with varying composition have been investigated. LÄS MER
3. Precipitate growth and coarsening in creep resistant chromium steels
Sammanfattning : .... LÄS MER
4. Structure, Morphology, and Catalytic Properties of CuOx/CeO2 Model Catalysts
Sammanfattning : Cerium dioxide, or ceria, is a chemically stable oxygen ion conducting material with a capacity to store and release oxygen, and is therefore extensively used in combustion catalysts. The Cu-Ce-O system has been identified as one of the most active catalysts for the combustion of carbon monoxide. LÄS MER
5. Organization of Nanoparticles in Solution-A TEM Study
Sammanfattning : A new approach to the study of nanoparticle systems has been introduced. Nanoparticle systems in aqueous and organic solutions have been synthesized and studied by transmission electron microscopy. These systems include nanoparticles of gold, silver, palladium, ruthenium, and platinum which have been stabilized using various ligands. LÄS MER