Power Thesaurus. 1969. pedometer thesaurus http://www.powerthesaurus.org/pedometer/synonyms (accessed August 31, 2017). Harvard. Power Thesaurus 1969, pedometer thesaurus, Power Thesaurus, viewed 31 August, 2017, <http://www.powerthesaurus.org/pedometer/synonyms>.
We would like to Buy Columbite with Nb2O5 45-55% min,Ta2O5 approx 5%, U3O8+ThO2 0.5% max. Niobium metal ingots 99.95%min.
Niobium - Applications. 1  Out of 44,500 tonnes of niobium mined in 2006, an estimated 90% was used in high-grade structural steel. 2  Niobium is an effective microalloying element for steel, within which it forms niobium carbide and niobium nitride. 3  These same niobium alloys are often used in pipeline construction.