Abstract
An account is given on the various purification methods developed for ultra purification of Nb. Emphasis is on investigations carried out to optimize the conditions of liquid-liquid extraction and molten salt electrolysis. Both processing routes allowed to produce Nb with W and Ta impurity concentrations in the ppb range and residual resistivity ratios RRR>10000.
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CITATION STYLE
APA
Koethe, A., & Moench, J. I. (2000). Preparation of ultra high purity niobium. Materials Transactions, JIM, 41(1), 7–16. https://doi.org/10.2320/matertrans1989.41.7
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