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Magnesium, titanium, rare metals, semiconductors
ArticleName
Influence of impurities on residual relative electrical resistance of high-purity niobium ingots
ArticleAuthor
+Vygovskiy E. V.
Abstract
The results of researching influence of impurities different in their chemical nature on residual relative electrical resistance of niobium have been conduced. The characteristics of niobium ingots, produced in different conditions, of different grades and initial electrolytic powders have been considered. It is noted that the technology of niobium ingots production for ultra-high frequency structures with total content of impurities not more than (1–2) . 10–2 % (mass.) which includes a double electolytic refining of niobium followed by electron-beam melting of the resulting niobium in oil-free vacuum has been developed in “Giredmet” Institute.
keywords
Niobium, impurities, hardness of ingots, residual electrical resistance, electrical powder, ultra-high frequency structure.
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russian
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