Chang, HJ Fleury, E Song, GS Kim, WT Kim, DH 2024-01-21T07:15:24Z 2024-01-21T07:15:24Z 2021-09-01 2004-03-15 0022-3093 https://pubs.kist.re.kr/handle/201004/137762 The effect of Be addition on the formation of quasicrystalline phases in Al-rich Al-Mn(-Be) alloys has been investigated. A metastable icosahedral quasicrystalline phase was found to form in a 93.5Al-5Mn-1.5Be (in wt%) alloy prepared by a conventional casting technique, indicating that the addition of Be to Al-Mn alloys improves the quasicrystal forming ability. The icosahedral phase in conventionally cast Al-Mn-Be alloys forms in the undercooled melt with the equilibrium growth morphology of the pentagonal dodecahedron. Heat treatment at 540 degreesC for 100 h results in the precipitation of small platelets of a two-dimensional quasiperiodic phase in the alpha-Al matrix. These precipitates have an orientation relationship with the a-Al. matrix. (C) 2004 Elsevier B.V. All rights reserved. English ELSEVIER SCIENCE BV HEXAGONAL APPROXIMANT PHASES TRANSLATIONAL SYMMETRY ICOSAHEDRAL PHASE QUASICRYSTAL STABILITY Formation of quasicrystalline phases in Al-rich Al-Mn-Be alloys Article 10.1016/j.jnoncrysol.2003.11.005 1 JOURNAL OF NON-CRYSTALLINE SOLIDS, v.334, pp.12 - 16 JOURNAL OF NON-CRYSTALLINE SOLIDS 334 12 16 scie scopus 000189274200004 Materials Science, Ceramics Materials Science, Multidisciplinary Materials Science Article; Proceedings Paper HEXAGONAL APPROXIMANT PHASES TRANSLATIONAL SYMMETRY ICOSAHEDRAL PHASE QUASICRYSTAL STABILITY quasicrystal reinforced Al composite synthesis microstructure