Nb 5Si 3 intermetallic compound was directly synthesized via an electrodeoxidation process from molten CaCl 2 electrolyte. The reaction mechanism was studied by performing a series of quenching investigations, which suggested that the formation of a series of sub oxides and compounds containing calcium and oxygen preceded the formation of Nb 5Si 3. While Nb 2O 5 was gradually reduced to its sub oxides, (Nb 2O 5/NbO 2/NbO/Nb), SiO 2, on the other hand, got directly reduced to silicon and reacted with Nb to form Nb 5Si 3.
- A. Intermetallics, miscellaneous
- F. Electrochemical characterization
- G. Aero-engine components