X-RAY INVESTIGATION OF RUTHENIUM WITH CURIUM AND TECHNETIUM ALLOY FORMATION

Pichuzhkina Elena Mikhaylovna, Postgraduate student, Ulyanovsk State University, researcher at “GNT Nauchno-issledovatelsky institute yadernykh reaktorov” plc. (State research institute of nuclear reactors), elena810@mail.ru
Radchenko Vyacheslav Mikhaylovich, Doctor of chemical sciences, laureate of the public award of the Russian Federation in science and engineering, head of the laboratory of sources technology at “GNT Nauchno-issledovatelsky institute yadernykh reaktorov” plc. (State research institute of nuclear reactors)
Tomilin Sergey Vasilyevich, Candidate of chemical sciences, chief researcher at “GNT Nauchno - issledovatelsky institute yadernykh reaktorov” plc. (State research institute of nuclear reactors), RotmKV@yandex.ru
Rotmanov Konstantin Vladislavovich, Candidate of chemical sciences, senior staff researcher at “GNT Nauchno-issledovatelsky institute yadernykh reaktorov” plc. (State research institute of nuclear reactors), RotmKV@yandex.ru

539.125

The article introduces the results of radiographic examination of ruthenium compounds with curium and technetium. The authors have obtained a microsample of curium-244-ruthenium alloy by high-temperature condensation of metallic Cm on a ruthenium substrate. After X-ray diffractometry method examination, the authors have discovered two intermetallic semiconductors in the microsample: Ru2Cm with a hexagonal lattice of Zn2Mg type with the following parameters: a = 5,279 (1) Å, c = 8,812 (3) Å; Ru3Cm with a cubic lattice of Cu3Au type and a = 4,151 (2) Å. The authors have received the data on X-ray lattice amorphization of Ru3Cm intermetallic semiconductor under intensive alpha decay of curium-244. Metallic samples of technetium, as well as samples of technetium alloys, irradiated in the reactor up to the accumulation of 19, 45, 70 % ruthenium have been studied by the X-ray diffraction method. The article shows that ruthenium accumulation results in formation of homogeneous solid solutions of ruthenium-technetium with hexago-nal close-packed structures.

curium, metallic technetium, ruthenium, X-ray diffractometry analysis, alloy, crystal structure, lattice parameters.