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ChemInform Abstract: Phase Equilibria in the Nb—Fe—Cr—Si System.

✍ Scribed by M. VILASI; M. FRANCOIS; H. BREQUEL; R. PODOR; G. VENTURINI; J. STEINMETZ

Publisher
John Wiley and Sons
Year
2010
Weight
32 KB
Volume
29
Category
Article
ISSN
0931-7597

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✦ Synopsis

Phase Equilibria in the Nb-Fe-Cr-Si System. -The new quaternary phase Nb 6.6 Fe 1.4 Cr 4 Si 8 is obtained at 1473 K. The crystal structure is of a new type derived from the Cr 11 Ge 8 -type structure (space group Pnma, Z = 4). The existence of Nb 2 Cr 3 Si 3 at 1523 K is confirmed. It crystallizes in the Mn 5 Si 3 -type structure (space group Pb 3 /mcm, Z = 2). The two structures (single crystal XRD) are characterized by the presence of Si octahedra sharing faces and edges.

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