X-ray structural study of intermetallic alloys RT2Si and RTSi2 (R=rare earth, T=noble metal)
- Author(s)
- Alexander V Gribanov, Andrij Grytsiv, Peter Franz Rogl, Yuri D. Seropegin, Gerald Giester
- Abstract
Two series of intermetallic alloys, RT 2Si and RTSi2, have been synthesized from stoichiometric compns. The crystal structures of EuPt1+ xSi2- x (CeNiSi2-type), CeIr2Si (new structure type), YbPd2Si and YbPt2Si (both YPd2Si-type) have been elucidated from X-ray single crystal CCD data, which were confirmed by XPD expts. The crystal structures of LaRh2Si and LaIr2Si (CeIr2Si-type), {La,Ce,Pr,Nd}AgSi2 (all TbFeSi2-type), and EuPt2Si (inverse CeNiSi2-type) were characterized by XPD data. RT 2Si/RTSi2 compds. were neither detected in as-cast alloys Sc25Pt50Si25, Eu25Os25Si50 and Eu25Rh25Si50 nor after annealing at 900 C. Instead, X-ray single crystal data prompted Eu2Os3Si5 (Sc2Fe3Si5-type) and EuRh2+ xSi2- x (x=0.04, ThCr2Si2-type) as well as a new structure type for Sc2Pt3Si2 (own type).
- Organisation(s)
- Department of Physical Chemistry, Department of Mineralogy and Crystallography
- External organisation(s)
- Anuchin Research Institute and Museum of Anthropology
- Journal
- Journal of Solid State Chemistry
- Volume
- 183
- Pages
- 1278-1289
- No. of pages
- 12
- ISSN
- 0022-4596
- DOI
- https://doi.org/10.1016/j.jssc.2010.03.038
- Publication date
- 2010
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 104017 Physical chemistry, 105113 Crystallography
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/4484bfa9-bc8b-402b-958b-79c7a7285ae8