Contribution to the system Europium — boron — carbon

Abstract

By means of chemical preparation techniques and x-ray analysis the ternary system EuBC was studied, with special emphasis on the technologically important sections EuB₆C and EuB₆B₄C. It was possible to prove the existance of a hexaboride-carbon solid solution EuB_6−xC_x (0 ⩽ x ⩽ 0.25), a ternary phase EuB₂C₂, the europlum carbides EuC_x (⪡Eu₂C⪢), EuC₂, as well as another carbide of the approximate composition Eu₂C₃.