A Study of the Interaction of Radium Salts with Construction Materials

The interaction of Ra(NO3)2 and RaCO3 with metallic Fe, Ni, Cr, Ti has been studied. Experimental samples were fabricated by deposition of water-alcohol suspensions of radium salts onto substrates made of the corresponding metals, followed by evaporation and calcination for 7–14 h at a temperature of 800°C. According to the results of an X-ray phase analysis, mixed oxides of composition RaMOx, where M = Fe, Cr, Ti, Ni, in joint calcination of Ra(NO3)2 and RaCO3 with Fe, Ni, Cr, Ti metals.