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COLUMBIUM (NIOBIUM) AND TANTALUM By Larry D. Cunningham Columbium (niobium—Nb) is vital as an alloying element in steels and in superalloys for aircraft turbine engines and is in greatest demand in industrialized count
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Document Date: 1996-11-07 09:53:46
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COLUMBIUM (NIOBIUM) AND TANTALUM By Larry D. Cunningham Columbium (niobium—Nb) is vital as an alloying element in steels and in superalloys for aircraft turbine engines and is in greatest demand in industrialized count