Text icon  Icosahedral clusters, icosahedral order and stability of quasicrystals - a view of metallurgy.

 
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Description: This is a scientific article, which reviews 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, the role of phason disorder introduced by rapid solidification, in structural stability and its interplay with chemical order and composition is discussed. The article is publshed in Sci. Technol. Adv. Mater. 9 (2008) 013008 (20pp); DOI:10.1088/1468-6996/9/1/013008.
Keywords: stable quasicrystal • isodahedral cluster • valence concentration • phason disorder • icosahedral order • metallurgy
Categories: Science approaches > Structure, bonding & defects > Atomic structure
Science approaches > Structure, bonding & defects > Atomic & molecular bonding
Created by: An Pang Tsai, Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai
Published by: IOP Publishing
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Date created: 09 October 2007
Date added: 10 October 2011
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Resource ID: 3733