Equilibria
Equilibria E 4000Cerium-Silicon System. -The Ce-Si phase diagram is constructed by means of thermal analysis, XRD, and metallography. The presence of Ce 5 Si 3 , Ce 3 Si 2 , Ce 5 Si 4 and CeSi is confirmed. The system exhibits two cerium disilicides. CeSi 2-a1 crystallizes in the α-GdSi 2 structure type, and CeSi 2-a2 in the α-ThSi 2 structure type. The intermetallics Ce 5 Si 3 , Ce 3 Si 2 , Ce 5 Si 4 , and CeSi 2-a2 form in peritectic reactions at 1260, 1335, 1500, and approximately 1575°C, respectively. -(BULANOVA*, M. V.; ZHELTOV, P. N.; MELESHEVICH, K. A.; SALTYKOV, P. A.; EFFENBERG, G.; J. Alloys Compd.
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