Formation of curium alloys with iron, cobalt and ruthenium

Presented are results of the production and X-ray examination of micro-samples of curium-244 alloys with iron, cobalt and ruthenium produced by high-temperature condensation of metal curium vapor onto corresponding substrates. The investigated system components did not exhibit mutual solubility at room temperature. In the Cm-Fe system two intermetallic compounds were found: Fe17Cm2 (the Ni17Th2 structural type) and Fe2Cm (the Cu2Mg structural type). In the Cm-Co system three intermetallics were revealed: Co17Cm2 (the Ni17Th2structural type), Co5Cm (the Cu5Ca structural type) and intermetallide Co2Cm (the Cu2Mg structural type). In the Cm-Ru system intermetallides Ru2Cm (the Zn2Mg structural type) and Ru3Cm (the Cu3Au structural type) were detected. An effect of high alpha-activity of 244Cm nuclide on crystal structures of the obtained intermetallides was investigated.