| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1600548 | Intermetallics | 2012 | 4 Pages |
Nb5Si3 intermetallic compound was directly synthesized via an electrodeoxidation process from molten CaCl2 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 Nb5Si3. While Nb2O5 was gradually reduced to its sub oxides, (Nb2O5/NbO2/NbO/Nb), SiO2, on the other hand, got directly reduced to silicon and reacted with Nb to form Nb5Si3.
► Nb5Si3 was directly synthesized via electrodeoxidation in molten CaCl2. ► Nb2O5 was gradually reduced to NbO2, NbO and Nb. ► CaNb2O6 was formed at the initial stage and reduced to CaNb2O4 and Nb. ► The formation of Nb5Si3 impelled the decomposition of SiO2.
