Crystal growth of a decagonal Al-Co-Ni quasicrystal

J. Q. Guo, T. J. Sato, T. Kimura, T. Hirano, A. P. Tsai

Research output: Contribution to journalConference articlepeer-review


We have grown a decagonal single quasicrystal with a size of centimeter order in an Al72Co16Ni12 alloy by floating zone method at a growth rate of 0.5 mm/h. The single decagonal quasicrystal has been inspected by Laue X-ray as well as neutron diffraction, revealing a very high quasicrystalline quality. By quenching the liquid during growth, a flat solid-liquid interface has been directly observed. There exists solute redistribution at the growing solid-liquid interface. At steady state growth Al is enriched and Co, Ni are depleted in front of solid-liquid interface. Solute partition ratios of Al, Co and Ni were determined to be about 0.91, 1.57 and 1.08, respectively.

Original languageEnglish
Pages (from-to)37-42
Number of pages6
JournalMaterials Research Society Symposium Proceedings
Publication statusPublished - 1999
EventProceedings of the 1998 MRS Fall Meeting - The Symposium 'Advanced Catalytic Materials-1998' - Boston, MA, USA
Duration: 1998 Nov 301998 Dec 3


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