Influence of ball milling on quasicrystal formation in melt-spun Zr-based glassy ribbons

Abstract

The effect of mechanical deformation on the formation of quasicrystals in Zr₅₇Ti₈Nb_2.5Cu_13.9Ni_11.1Al_7.5 glassy ribbons has been investigated. The mechanical treatment drastically affects the crystallization behavior and, in particular, suppresses primary quasicrystal formation. However, quasicrystals can be formed by the addition of the appropriate amount of zirconium. This indicates that if a particular short-range order (e.g., icosahedral) is required for quasicrystal formation and if this short-range order is altered during milling, it can be restored by appropriately adjusting the chemical composition.

Acknowledgements

The authors would like to thank M. Frey and H. Schulze for technical assistance, J. Acker and W. Gruner for chemical analysis and C. Mickel for help with the TEM investigations. This work was supported by the German Science Foundation under grants Ec 111/10-1,2 and Lu 217/17-1,2.

Notes

Present address: FG Physikalische Metallkunde, FB 11 Material- und Geowissenschaften, Technische Universität Darmstadt, Petersenstraße 23, D-64287 Darmstadt, Germany

Additional information

Notes on contributors

L. Schultz

Present address: FG Physikalische Metallkunde, FB 11 Material- und Geowissenschaften, Technische Universität Darmstadt, Petersenstraße 23, D-64287 Darmstadt, Germany