Assessment of dissociation rate of FeO-Cr2 O3 using the Bjerrum-Guggenheim coefficient


Tolokonnikova V. Baisanov S. Narikbayeva G. Korsukova I.
July 2021Faculty of Metallurgy

Metalurgija
2021#60Issue 3-4303 - 305 pp.

A calculation procedure of line positions of the monovariant phase equilibrium for the crystallization regions of a congruent compound using the osmotic coefficient of Bjerrum-Guggenheim was developed. The relevant mathematical apparatus for an analytical description of lines and surfaces of the phase crystallization was recommended. As an example of FeO-Cr2 O3 oxide system, the assessment of dissociation rate of congruent compound of FeCr2 O4 was performed. The demonstration material of behavior of the osmotic coefficient of Bjerrum-Guggenheim under bound-ary conditions as assessment criterion of melt structurewas presented.

Bjerrum-Guggenheim coefficient , Crystallization , Dissociation rate , FeO-Cr2 O3 system , Phase diagrams

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Chemical-Metallurgical Institute, Karaganda, Kazakhstan

Chemical-Metallurgical Institute

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