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The ternary rare-earth metal boride carbides REBC (RE=Ce, Pr, Nd) were prepared by melting mixtures of the elements and subsequent annealing at temperatures between 1270K and 1570K. Their crystal structures were refined from single crystal X-ray diffraction data. They crystallize in the LaBC-type structure (space group P2 1 2 1 2 1 , Z=20); CeBC: a=8.5021(5)Å, b=8.5217(7)Å,...
The ternary rare earth boride carbides R 10 B 9 C 12 (R=La, Ce, Pr, Nd) were synthesized by reacting the elements at temperatures between 1470 and 1760K. The crystal structures (Ce 10 B 9 C 12 type) were determined from single crystal X-ray diffraction data. For Pr 10 B 9 C 12 we found: space group P4 1 2 1 2,...
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