Columbium Metallurgy

D. L. Douglass and F. W. Kunz, eds., "Columbium Metallurgy," Proceedings Symposium, New York, June 9—10, 1960, Interscience PubHshers, New York, 1961. B. W. Gonser and E. M. Sherwood, eds.. The Technology of Columbium (Niobium), John Wiley Sons, Inc., New York, 1958. 

Dwi3 Dwight, A.E. Columbium Metallurgy. Interscience, New York, p. 383 (1961). 

In preparing solid platinum from its powder, Wollaston foreshadowed modern methods of powder metallurgy, by which the powders of refractory metals, such as tungsten, molybdenum, tantalum, and columbium, can be fabricated into useful articles (84, 86). 

Columbium EINECS 231-113-5 Niobium Niobium-93 Niobium element VN 1. Metallic element used in ferrous metallurgy for superconducting and magnetic alloys, cermets, missiles and rockets, cryogenic equipment, ferroniobium for alloy steels, Metal mp = 2468° bp = 4927° d = 8.57. Atomergic Chemetals Cabot Carbon Ltd. Cerac Noah Cham. 

Tews, J. L. and Sherman, L. M. Recent Developments in Separating Tantalum and Niobium by Solvent Extraction. Symposium on Columbium (niobium) of the Electrothermics and Metallurgy Division of the Electrochemical Society, Washington, D.C. 16 and 17 May 1957. 

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