Technological Challenges in Extractive Metallurgy and Refining of Nb, Ta and Preparation of their Compounds Alloys
Efforts have been put towards industrial adaptability of the useful knowledge gained from lab scale to reliable pilot scale for production of refractory metals like Ta Nb. Electron beam refining is used for production of these refractory metals in their pure form. Processes are developed for production of tantalum niobium oxides/compounds, K2TaF7, Ta powder, Ta capacitors, Nb thermit, Nb metal granules, RRR Nb, Nb base alloys such as ZrNb master alloy, Nb47%Ti, C 103, Nb1%Zr0.1%C, Nb5%Mo1%Zr0.1%C, Nb10%W, Nb10%W2.5% Zr, and Zr2.5%Nb, ZrNbB, Ta10%W, Al coated Zr powder etc.