Sökning: "chromium oxide"
Visar resultat 6 - 10 av 83 avhandlingar innehållade orden chromium oxide.
6. Bioaccessibility of Stainless Steels : Importance of Bulk and Surface Features
Sammanfattning : With increasing environmental awareness, the desire to protect human beings and the environment from adverse effects induced by dispersed metals has become an issue of great concern and interest. New policies, such as REACH (Registration, Evaluation, Authorisation and Restriction of Chemicals) within the European Community, have been implemented to reduce hazards posed by the use of chemicals on producers and downstream users. LÄS MER
7. Metallic materials in Solid Oxide Fuel Cells: Oxidation and chromium evaporation properties
Sammanfattning : Solid oxide fuel cells (SOFCs) are high-temperature energy conversion devices which have great potential due to their high efficiency, low operating costs and flexibility in using conventional hydrocarbon based fuels. However, system cost, durability and performance stability in long-term operation are barriers to the widespread commercialization of SOFC technology. LÄS MER
8. ROLE OF SURFACE OXIDES IN SINTERING OF CHROMIUM-ALLOYED STEEL POWDER
Sammanfattning : During water-atomisation and handling of steel powder the surface inevitably oxidises. The surface bound oxide is an important factor in the processing of powder metallurgical (PM) steels, especially in case the powder contains elements forming stable oxides, such as Cr, Mn, and Si. LÄS MER
9. Delubrication of Chromium Prealloyed Powder Metallurgy Steels
Sammanfattning : Consolidation of steel components produced by means of powder metallurgy (PM) is achieved typically through compaction and sintering. During consolidation, final dimensions of the part are already achieved after compaction, while sintering imparts strength to the components. LÄS MER
10. Functionalized nanomaterials for the removal of chromium (VI) from aqueous solutions
Sammanfattning : .... LÄS MER