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New approximant crystals of decagonal B-Mg-Ru quasicrystal.
- Source :
-
Philosophical Magazine . 7/1/2007, Vol. 87 Issue 18-21, p2701-2706. 6p. 3 Diagrams, 1 Chart, 1 Graph. - Publication Year :
- 2007
-
Abstract
- We have discovered four new approximant phases of the B-Mg-Ru decagonal quasicrystal. Six phases were observed in electron diffraction patterns of B-Mg-Ru alloys prepared at 1673 K from B2xMg(1-x)Ru2(1-x) (x = 0.44-0.48). Two of them are known, B4Mg2Ru5 and B11Mg5Ru13, and the other four are new approximant phases. Their lattice parameters range from a = 0.84 nm to 8.5 nm; some of them can be described with the Fibonacci sequence. We suggest tiling models of these approximants using two subunits of B4Mg2Ru5 and B11Mg5Ru13, 'hexagon' and 'boat'. [ABSTRACT FROM AUTHOR]
- Subjects :
- *QUASICRYSTALS
*CONDENSED matter
*CRYSTALS
*APPROXIMATION theory
*ALLOYS
Subjects
Details
- Language :
- English
- ISSN :
- 14786435
- Volume :
- 87
- Issue :
- 18-21
- Database :
- Academic Search Index
- Journal :
- Philosophical Magazine
- Publication Type :
- Academic Journal
- Accession number :
- 33401824
- Full Text :
- https://doi.org/10.1080/14786430701361446