Phase Changes in Radiation Protection Composite Materials Based on Bismuth Oxide

XRF method was used to study the mineralogical compounds of the radiation protection ceramic materials based on a high-alumina binder and a “heavy” aggregate, bismuth oxide. The content of Bi2O3 in the test samples was kept in the range of 38.5–75 wt%. Along with the bismuth oxide, the aggregate was aluminum oxide (Al2O3). The binder synthesis followed the principle of obtaining ceramic concretes based on artificial ceramic binders (ACB).