Journal
SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS
Volume 9, Issue 1, Pages -Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1088/1468-6996/9/1/013008
Keywords
stable quasicrystal; isodahedral cluster; valence concentration; phason disorder; icosahedral order
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We review the stability of various icosahedral quasicrystals ( iQc) from a metallurgical viewpoint. The stability of stable iQcs is well interpreted in terms of Hume-Rothery rules, i.e. atomic size factor and valence electron concentration, e/a. For metastable iQcs, we discuss the role of phason disorder introduced by rapid solidification, in structural stability and its interplay with chemical order and composition.
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