Neutron Rietveld refinement of the structure of the ternary silicide Ti4Ni4Si7
- 1 September 1990
- journal article
- Published by Springer Nature in Journal of Materials Research
- Vol. 5 (9) , 1887-1893
- https://doi.org/10.1557/jmr.1990.1887
Abstract
The structure of Ti4Ni4Si7 is studied using powder neutron diffraction and Rietveld analysis. Prccise determination of the crystalline parameters, atomic positions, and temperature factors is achieved. A criterion previously elaborated for the phase TiFeSi2 is used to determine the coordination number. From the arrangement of the atoms in the unit cell and their interbond distances, we find that Si atoms are nearest neighbors to Ti and Ni. An extension of the same criterion shows that Ti–Ni and Ni–Si hybridization is likely to be strong while Ti–Ni hybridization is weak. A comparison with mono- and disilicides is made.Keywords
This publication has 5 references indexed in Scilit:
- Resistivity of the solid solutions (Co-Ni)Si2Journal of Applied Physics, 1986
- A new computer program for Rietveld analysis of X-ray powder diffraction patternsJournal of Applied Crystallography, 1981
- Neutron PhysicsPublished by Springer Nature ,1977
- Line profiles of neutron powder-diffraction peaks for structure refinementActa Crystallographica, 1967
- A ternary alloy with PbCl2-type structure: TiNiSi(E)Acta Crystallographica, 1965