Regensburg 2013 – scientific programme

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MM: Fachverband Metall- und Materialphysik

MM 13: Topical Session: Quasicrystals & Complex Metallic Alloys III

MM 13.2: Talk

Monday, March 11, 2013, 16:00–16:15, H25

Single-crystal growth of various complex metallic alloy phases — •Michael Feuerbacher, Marc Heggen, and Carsten Thomas — Forschungszentrum Juelich, 52349 Juelich, Germany

Complex metallic alloys (CMAs) are intermetallic compounds with large lattice parameters and unit cells containing some tens to some thousands of atoms. Their local order is in most cases dominated by icosahedral atom coordination, which distinguishes CMAs from simple metals and compounds. In order to be able to establish intrinsic structure-property relations characteristic of the particular local order, the availability of high-quality single crystals is of particular importance. In this presentation we report on single-crystal growth approaches on various different, mostly Al-based CMAs. We present the growth techniques applied and the resulting single crystals along with critical primary characterizations. The strategy of phase selection, which is essential to achieve comprehensive structure-property relations by comparative studies, is discussed.