Sökning: "SiO2"
Visar resultat 21 - 25 av 245 avhandlingar innehållade ordet SiO2.
21. Interaction of Photonic and SIO2 Polaritonic gaps in One-Dimensional Periodic Structures
Sammanfattning : .... LÄS MER
22. Thermodynamic properties and high-temperature Raman spectra of some CaO-MgO-SiO2 phases
Sammanfattning : .... LÄS MER
23. Alkylation and Hydrodearomatization over Zeolite cCatalysts
Sammanfattning : The alkylation of aromatic compounds is widely used in the large-scale synthesis of petrochemicals, and a great variety of fine chemicals and intermediates. Acid catalysts used for alkylation of aromatic hydrocarbons are Brønsted acids containing acidic protons. LÄS MER
24. Measurements of the thermodynamic activities of chromium and vanadium oxides in CaO-MgO-Al2O3-SiO2 slags
Sammanfattning : In the present work, the thermodynamic activities of chromium and vanadium oxide in CaO-SiO2-MgO-Al2O3 slags were measured using gas-slag equilibration technique. The slag was equilibrated with a gas mixture of CO, CO2 and Ar gases enabling well-defined oxygen partial pressures in the gas mixture (PO2=10-3,10-4,10-5 Pa) at temperatures 1803, 1823K, 1873, 1923 K. LÄS MER
25. A Study on the Correlation between Ladle Glaze and Non-Metallic Inclusions in the Ladle Treatment
Sammanfattning : In the present thesis, the correlation between ladle glaze and non-metallic inclusions in the ladle treatment was studied. A number of industrial trials with full scale ladle and laboratory works were performed to investigate the inclusions in the ladle treatment. LÄS MER