Article

Arhive, 2004, № 2

Thermophysical Properties of Materials

2004. V. 42. № 2. P. 242–251

Asmolov V.G., Zagryazkin V.N., Astakhova E.V., Vishnevskii V.Yu., D'yakov E.K.

The existence of an immiscibility region in the $\mathrm{U}$–$\mathrm{Zr}$-$\mathrm{O}$ system

This paper is devoted to the study into the structure of core melts of reactors such as water-moderated water-cooled power reactors. The quenching method is used to experimentally investigate the structure of $\mathrm{U}$–$\mathrm{Zr}$-$\mathrm{O}$ melts with an atomic ratio of $\mathrm{U}/\mathrm{Zr}=1.2-1.6$ at a temperature of $2773$ K. It is found that, for the most probable compositions of $\mathrm{U}$–$\mathrm{Zr}$-$\mathrm{O}$ melts under conditions of heavy accident with the $\mathrm{Zr}$ oxidation level above $30\%$, no separation of the corium melt into immiscible liquids is observed.

Article reference:
Asmolov V.G., Zagryazkin V.N., Astakhova E.V., Vishnevskii V.Yu., D'yakov E.K. The existence of an immiscibility region in the $\mathrm{U}$–$\mathrm{Zr}$-$\mathrm{O}$ system, High Temp., 2004. V. 42. № 2. P. 242