Effect of thermal annealing on the properties of borobasalt systems containing simulated radioactive waste from pyroelectrochemical technology


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Abstract

The effect of thermal annealing performed in the temperature range 400–800°С on the hydrolytic durability of borobasalt systems containing simulated radioactive waste from pyroelectrochemical technology was studied. Three types of simulated waste were examined: type 1, waste from reprocessing of reactor-grade plutonium; type 2, waste from reprocessing of weapons-grade plutonium; type 3, waste from gallium recovery from type 2 waste (virtually pure americium phosphate). Depending on the waste type and temperature, annealing can both increase and decrease the host material leach rate.

About the authors

V. V. Ivanov

Frumkin Institute of Physical Chemistry and Electrochemistry

Email: smith@ipc.rssi.ru
Russian Federation, Leninskii pr. 31, korp. 4, Moscow, 119071

D. G. Kuznetsov

Frumkin Institute of Physical Chemistry and Electrochemistry

Author for correspondence.
Email: smith@ipc.rssi.ru
Russian Federation, Leninskii pr. 31, korp. 4, Moscow, 119071

I. B. Popov

Frumkin Institute of Physical Chemistry and Electrochemistry

Email: smith@ipc.rssi.ru
Russian Federation, Leninskii pr. 31, korp. 4, Moscow, 119071

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