Metallurgy, Vol. 59 No. 3, 2020.
Preliminary communication
Estimation of dissociation degree of congruently melting compounds through osmotic coefficient of BJERRUM-GUGGENHEIM
S. Baisanov
; Chemical-Metallurgical Institute, Karaganda, Kazakhstan
V. Tolokonnikova
; Chemical-Metallurgical Institute, Karaganda, Kazakhstan
G. Narikbayeva
; Chemical-Metallurgical Institute, Karaganda, Kazakhstan
I. Korsukova
; Chemical-Metallurgical Institute, Karaganda, Kazakhstan
Ye. Mukhambetgaliyev
; Chemical-Metallurgical Institute, Karaganda, Kazakhstan
Abstract
A procedure was developed to calculate the position of lines of monovariant phase equilibria for crystallization areas of congruently melting compounds through the dissociation degree of a chemical compound.The relevant mathematical apparatus was recommended to describe analyticallythe lines and surfaces of crystallization phases using the Bjerrum-Guggenheim coefficient. The iron-silicon phase diagram demonstrated that the osmotic coefficient of Bjerrum-Guggenheim (its linear dependence) can be as an assessment criterion of the composition of melts.
Keywords
Fe-Si system; crystalization phase; mathematical equations; dissocitaion degree; Bjerrum-Guggenheim coefficient
Hrčak ID:
237034
URI
Publication date:
1.7.2020.
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