Obtaining and application of high-pure tantalum and ruthenium

The results of systematic research on the complex refining of refractory metals Ta and Ru, and some applications of these are represented. Methods of electron beam melting, zone recrystallization and zone recrystallization in combination with electrotransport in high vacuum were mainly used for the refining of these metals. Refining of tantalum and ruthenium based on the use of complementary physical methods and use high vacuum technology, achieves the high degrees of purification and obtaining metals in its pure form: Ta – 99,999 wt.%; Ru > 99.99 wt.%.