Tsai AP. Icosahedral clusters, icosaheral order and stability of quasicrystals-a view of metallurgy.
SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2008;
9:013008. [PMID:
27877926 PMCID:
PMC5099795 DOI:
10.1088/1468-6996/9/1/013008]
[Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2007] [Revised: 04/25/2008] [Accepted: 01/15/2008] [Indexed: 05/30/2023]
Abstract
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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