Origin of Swelling in Gaseous Reduction of Iron-Bearing Ores

摘要

Abnormal swelling due to profuse metal-whisker formation was found during CO-CO sub 2 reduction of iron-bearing ores. Dense, polycrystalline cobalt ferrite was reduced at 900 exp 0 C to explore the basic mechanism of the whisker formation. Various effects on the whisker formation, such as reaction conditions, initial oxide phase, and impurity species, have been clarified. (ERA citation 08:046763)