Formation of quasicrystals in Zr[sub 46.8]Ti[sub 8.2]Cu[sub 7.5]Ni[sub 10]Be[sub 27.5] bulk glass

Wanderka, N.; Macht, M.-P.; Seidel, M.; Mechler, S.; Ståhl, K.; Stahl, S.; Jiang, J. Z.; Jiang, J.Z.
December 2000
Applied Physics Letters;12/11/2000, Vol. 77 Issue 24
Academic Journal
The formation of the quasicrystalline phase is observed as a first step of crystallization during isothermal annealing of the Zr[sub 46.7]Ti[sub 8.3]Cu[sub 7.5]Ni[sub 10]Be[sub 27.5] 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. © 2000 American Institute of Physics.


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