High Temperature FeB-type Phases in the Systems Ta-{Ti,Zr,Hf}-B
- Autor(en)
- Fainan Failamani, Klaus Göschl, Gabriel R. Reisinger, C. A. Nunes, G. C. Coelho, A. J. S. Machado, L. E. Correa, J.C.P. dos Santos, Gerald Giester, Peter Franz Rogl
- Abstrakt
Novel FeB-type phases have been evaluated in the systems Ta-{Ti,Zr,Hf}-B either from as cast or arc treated samples by x-ray powder and single crystal diffraction as well as electron probe microanalysis. In each of the three systems the formation of the FeB-type phase suggests a high temperature stabilization of a binary group IV metal monoboride with FeB-type. This holds true for Ti and Hf, while for Zr the single crystal study of (Ta,Zr)B proves that it is a true ternary phase, as no stable monoboride exists in the binary Zr-B system. EPMA analyses reveal that the FeB-type phases Ta{Ti,Zr,Hf}B are formed by substitution of Ta in TaB by rather small amounts of group IV elements (~3 at.% of Zr, ~7 at.% Hf, and ~10 at.% Ti).
- Organisation(en)
- Institut für Materialchemie, Institut für Funktionelle Materialien und Katalyse, Institut für Mineralogie und Kristallographie
- Externe Organisation(en)
- Universidade Federal de São Paulo
- Journal
- Journal of Phase Equilibria and Diffusion
- Band
- 36
- Seiten
- 620-631
- Anzahl der Seiten
- 12
- ISSN
- 1547-7037
- DOI
- https://doi.org/10.1007/s11669-015-0418-y
- Publikationsdatum
- 10-2015
- Peer-reviewed
- Ja
- ÖFOS 2012
- 104017 Physikalische Chemie, 104011 Materialchemie, 105113 Kristallographie, 104024 Röntgenstrukturanalyse
- Schlagwörter
- ASJC Scopus Sachgebiete
- Condensed Matter Physics, Metals and Alloys, Materials Chemistry
- Link zum Portal
- https://ucrisportal.univie.ac.at/de/publications/high-temperature-febtype-phases-in-the-systems-tatizrhfb(619759ae-b462-4e9c-b67c-22c67023c58b).html