Scientific Article
previous document  unige:32920  next document
add to browser collection

Strukturuntersuchungen an Siliziden

Nowotny, H.
Published in Monatshefte für Chemie. 1955, vol. 86, p. 385-396
Abstract Structures of the isotype phases of Cr3Si2, V3Si2, Nb3Si2, and Ta3Si2(characteristic space system D2d11) were studied. The formula detd. by x-ray anal. corresponded to M5Si3. Calcd. lattice consts. a and c for the silicides in kX were, resp.: 9.410, 4.747, V; 9.998, 5.062, Nb; and 9.86, 5.05, Ta. In the systems Nb-Si and Ta-Si, isotype phases were found, which can be considered high- or low-temp. modifications. Rotating-crystal and Weissenberg patterns of single crystals indicated tetragonal, space-centered elementary cells with lattice consts. a - 6.557, c 11.860 for Nb5Si3, and a = 6.503, c = 11.849 for Ta5Si3. The systems stabilized by C, V5Si3Nb5Si3 and V5Si3-Zr5Si3, with D88 structures were studied. Plots of cell-vol. against mole % indicated that the former gave a continuous solid soln., whereas the latter is not completely miscible. VSi2 and NbSi2 (C 40 type) were completely miscible in the solid state. In the system VSi2MoSi2 (type C40-C11), MoSi2 was very sol. in VSi2, but only small amts. of VSi2 dissolved in MoSi2.
Keywords SilicidesCrystal structureZirconium silicides
Full text
Article (Published version) (1.3 MB) - public document Free access
(ISO format)
PARTHE, Erwin, NOWOTNY, H., SCHMID, Hans. Strukturuntersuchungen an Siliziden. In: Monatshefte für Chemie, 1955, vol. 86, p. 385-396.

197 hits



Deposited on : 2014-01-08

Export document
Format :
Citation style :