High-energy X-ray diffraction studies of i-Sc[subscript 12]Zn[subscript 88]

Journal Article · Thu Sep 06 04:00:00 EDT 2012 · Philos. Mag.

DOI:https://doi.org/10.1080/14786435.2010.511599· OSTI ID:1047320

Goldman, A I; Kreyssig, A; Nandi, S; Kim, M G; Caudle, M L; Canfield, P C ^[1]

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1. Iowa State

Although quasicrystals form in a wide variety of ternary and quaternary metallic alloys, examples of stable binary icosahedral quasicrystals are quite rare. Indeed, it has been a decade since the discovery of icosahedral phases in Yb-Cd and Ca-Cd. We have discovered millimeter-sized facetted grains of i-Sc{sub 12}Zn{sub 88} with icosahedral (pentagonal dodecahedral and rhombic triacontahedral) morphologies in solution-grown samples. Structural characterization of the bulk icosahedral phase was accomplished through single-grain high-energy X-ray diffraction. For both growth morphologies, all diffraction peaks could be indexed by a primitive (P-type) icosahedral phase. The two types of morphology do, however, present interesting differences in their respective degrees of quasicrystalline order.

• Research Organization: Advanced Photon Source (APS), Argonne National Laboratory (ANL), Argonne, IL (US)
• Sponsoring Organization: DOE - BASIC ENERGY SCIENCES
• OSTI ID: 1047320
• Journal Information: Philos. Mag., Journal Name: Philos. Mag. Journal Issue: (19-21) ; 07, 2011 Vol. 91
• Country of Publication: United States
• Language: ENGLISH

Related Subjects

36 MATERIALS SCIENCE
ALLOYS
DIFFRACTION
GROWTH
MORPHOLOGY
SCANDIUM ALLOYS
X-RAY DIFFRACTION
ZINC ALLOYS