Icosahedral phase formation in Ag-substituted Ti-Zr-Ni rapidly-quenched alloys

Authors
Nicula, R Ponkratz, U Jianu, A Schick, C Burkel, E
Citation
R. Nicula et al., Icosahedral phase formation in Ag-substituted Ti-Zr-Ni rapidly-quenched alloys, MAT SCI E A, 294, 2000, pp. 90-92
Citations number
7
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN journal
09215093 → ACNP
Volume
294
Year of publication
2000
Pages
90 - 92
Database
ISI
SICI code
0921-5093(200012)294:<90:IPFIAT>2.0.ZU;2-T
Abstract
The formation of icosahedral phases in Ag-substituted Ti-Zr-Ni alloys was i nvestigated by in situ annealing diffraction experiments using synchrotron radiation. The as-quenched (Ti1-xAgx)-Zr-Ni alloys (x=2, 5, 7 and 10 at.%) are amorphous and/or in a mixed nanostructured state. Upon heating, the Ti- Zr-Ni-Ag alloys transform to either a crystalline or a quasicrystalline sta te, depending on the Ag content. Differential scanning calorimetry (DSC) st udies were performed to identify the nature and sequence of the phase trans itions. (C) 2000 Elsevier Science B.V. All rights reserved.