Published date:May 06 2018

Journal Title: KnE Material Sciences

Issue title: 15th International School-Conference "New Materials – Materials of Innovative Energy" (MIE)

Pages:103–108

DOI: 10.18502/kms.v4i1.2133

V V Mikhalchikvladmir_mephi@mail.ru

S N Nikitin

B A Tarasov

A V Tenishev

D P Shornikov

Semiempirical modeling of uranium mononitride decomposition was carried out using the laws of the chemical kinetics of heterogeneous reactions. All calculations based on results received from thermal stability tests of UN at high temperatures. Kinetic curves of UN decomposition products correspond to the self-accelerating decomposition, which follows the induction period. The experimental data of uranium nitride mass loss in the investigated range of parameters are well described obtained results. The modeling can be used to estimate the phase composition of uranium mononitride during high-temperature tests in an atmosphere that does not contain nitrogen.

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