20.500.12556/DKUM-50157 Shapes of the icosahedral quasicrystalline phase in melt-spun ribbons The shapes of icosahedral quasicrystalline (IQC) particles were determined in melt-spun ribbons of alloys based on the Al-Mn-Be alloy system. The sizes of the quasicrystalline particles ranged from a few tenths of nanometres up to 1m. Therefore, different methods were employed for characterizing their shapes: projection of quasicrystalline particles using transmission electron microscopy (TEM), cross-sections of IQCs on metallographically polished surfaces, and observation of deep-etched samples and extracted particles using a scanning electron microscope (SEM). It was discovered that icosahedral quasicrystalline particles preferentially grow in three-fold directions and have a tendency for faceting and adopting the shape of a pentagonal dodecahedron. The evolution of quasicrystalline shapes is systematically presented. Al-alloy metallography ribon icosahedral quasicrystalline phase shape melt-spinning Al-zlitine metalografija trak kvazikristali true false true Angleški jezik Slovenski jezik Znanstveno delo 2015-07-10 12:36:22 2015-07-10 12:36:22 2022-05-28 03:08:43 2022-03-30 03:06:50 2013 0 0 str. 65-67 št. 1 Letn. 52 2013 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 1334-2576 669.715:620.18:621.41=111 524301593 16265494 1334-2576 URN:SI:UM:DK:DGKGBZKN Metalurgija_2013_Boncina_Shapes_of_the_Icosahedral_Quasicrystalline_Phase_in_Melt-Spun_Ribbons.pdf Metalurgija_2013_Boncina_Shapes_of_the_Icosahedral_Quasicrystalline_Phase_in_Melt-Spun_Ribbons.pdf 1 167A688F950B6316A5A13D8608DC99CF 0cd77338046beb98e9e3654926a3de14466da8c527c47fdbbfd8151cabdfd4ba 5747ecd4-7c0e-11eb-bb7a-00155d0001ca https://dk.um.si/Dokument.php?lang=slv&id=113511 http://hrcak.srce.hr/86767 1 https://dk.um.si/Dokument.php?lang=slv&id=74715 Fakulteta za strojništvo 0 0 0