Formation of quasicrystals in Zr46.8Ti8.2Cu7.5Ni10Be27.5 bulk glass

The formation of the quasicrystalline phase is observed as a first step of crystallization during isothermal annealing of the Zr46.7Ti8.3Cu7.5Ni10Be27.5 bulk glass. The structure of the quasicrystals and the sequence of phase formation have been investigated by x-ray powder diffraction and transmiss...

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Bibliographic Details
Published in:Applied physics letters 2000-12, Vol.77 (24), p.3935-3937
Main Authors: Wanderka, N., Macht, M.-P., Seidel, M., Mechler, S., Ståhl, K., Jiang, J. Z.
Format: Article
Language:English
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Summary:The formation of the quasicrystalline phase is observed as a first step of crystallization during isothermal annealing of the Zr46.7Ti8.3Cu7.5Ni10Be27.5 bulk glass. The structure of the quasicrystals and the sequence of phase formation have been investigated by x-ray powder diffraction and transmission electron microscopy. The structure of the quasicrystals is determined to be primitive icosahedral with a quasilattice constant of 4.779 Å. The quasicrystals decompose into several intermetallic compounds after prolonged annealing at lower temperatures or in a short time period (less than 5 min) at high temperatures above 683 K.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.1329636