Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1615831 | Journal of Alloys and Compounds | 2012 | 4 Pages |
Abstract
The influence of small additions of Cu, Ag, Au, Pt, Pb, and Si on the formation and stabilization of Ti-Zr-Ni icosahedral quasicrystal (i-phase) are discussed. Among these elements, only the addition of Ag improved the stability and formability of the i-phase, significantly. A small amount of supercooling and the nucleation and growth of only the i-phase from the liquid during levitation melting experiments signal the presence of well developed extended icosahedral short range order (ISRO) in the liquid. These results are explained in terms of a better atomic size ratio of Ag to Zr to form ISRO.
Keywords
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Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
G.W. Lee, A.K. Gangopadhyay, K.F. Kelton,