Growth of large single grains of the icosahedral quasicrystal ZnMgY

Optical Response of fci-ZnMgHo Quasicrystal

“…The fci-Zn 65 Mg 25 Ho 10 single-grain quasicrystals were grown by the liquidencapsulated top-seeded solution-growth method [3]. The optical surface of sam- * corresponding author; e-mail: karpus@pfi.lt ples was prepared by mechanical polishing with finely grained, 1 µm and 0.25 µm, diamond paste.…”

Intermetallic phases and phase reactions in Zn–Mg (<40at.%)–Y (<20at.%) region

“…Earlier Tsai et al [13] have determined the isothermal sections at 600 • , 500 • , and 423 • of the Zn-Mg-Y system. On the other hand, Langsdorf et al [26] found that the primary solidification of the icosahedral phase occurred in Zn-Mg-Y alloys within the region of 40-75 at.% Mg and 2-3 at.% Y (the rest being Zn) and single crystals of the i phase have been obtained in an alloy with 40 at.% Mg and a few percent of Y [27]. This explains why Luo et al [1] could find the i phase in an Mg alloy containing some Zn and a very small amount of Y.…”

Application of synchrotron X-ray imaging to the study of directional solidification of aluminium-based alloys

“…up to several centimeters according to the size of the single grains of various alloys, routinely grown nowadays [12,21,22]. Therefore, one has to wonder whether these peculiar solids have to follow, during their growth, local rules [23] or if they need long-range atomic correlations to form their stable structures [24].…”