Published April 1985 | Version v1
Journal article Metadata-only

Refining of niobium by levitation melting technique

Creators

  • 1. Cabot Corp., Reading, PA

Description

The refining behavior of niobium, produced by an aluminothermic reduction reaction of Nb2O5, is studied using an electromagnetic levitation and melting technique. Under experimental conditions, significant refinement of niobium thermite occurs during levitation melting. Residence time plays a significant role in the refining process, and the refining kinetics, during levitation melting, correlate well with the approximate equations for desorption of nitrogen and carbon. The purity of the levitation-melted product is compared to that of niobium processed by the conventional EB drip-melting process

Additional details

Publishing Information

Journal Title
J. Met.
Journal Volume
37
Journal Issue
4
Series
J. Met.
Journal Page Range
22-26
ISSN
0022-2674
CODEN
JOMTA

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
17015756
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
CARBON; CHEMICAL REACTION KINETICS; DESORPTION; ELECTROMAGNETISM; EQUATIONS; IMPURITIES; LEVITATION; NIOBIUM; NIOBIUM OXIDES; NITROGEN; REDUCTION; TIME DEPENDENCE; ZONE MELTING; ZONE REFINING
Descriptors DEC
CHALCOGENIDES; CHEMICAL REACTIONS; ELEMENTS; KINETICS; MAGNETISM; MELTING; METALS; NIOBIUM COMPOUNDS; NONMETALS; OXIDES; OXYGEN COMPOUNDS; PHASE TRANSFORMATIONS; REACTION KINETICS; REFINING; SEPARATION PROCESSES; TRANSITION ELEMENT COMPOUNDS; TRANSITION ELEMENTS