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BCC derivative structures and their relation to rational approximants to quasicrystals

Ranganathan, S and Subramaniam, A and Tsai, AP and Dong, C (2001) BCC derivative structures and their relation to rational approximants to quasicrystals. In: Aperiodic 2000 Conference, 4-8 July 2000, Nijmegen, Netherlands, pp. 201-206.

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Abstract

Vacancy ordered phases have been earlier shown to be rational approximants to one-dimensional quasicrystals. The orientation relation between gamma brass and quasicrystals has also been pointed out in earlier work. Hexagonal phases in Al-Cr, Al-Mn and Mg base alloys have been shown to have a c/a ratio close to 1.225 (=Frank's ratio) and thus display pseudocubic symmetry. The interrelationships among these three classes of structures is emphasised as derivatives of the BCC lattice

Item Type: Conference Paper
Additional Information: Copyright of this article belongs to Gordon & Breach
Keywords: crystal structure;quasicrystals
Department/Centre: Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited: 17 Aug 2007
Last Modified: 27 Aug 2008 12:45
URI: http://eprints.iisc.ernet.in/id/eprint/10556

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