Phase Changes in Radiation Protection Composite Materials Based on Bismuth Oxide

Abstract

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). The paper establishes the specifics of sintering of the composites under study, fired under different temperatures.