Direct evidence for oxygen stabilization of icosahedral phase during crystallization of Zr<sub>65</sub> Cu<sub>27.5</sub> Al<sub>7.5</sub> metallic glass
- Murty, B. S.
- Ping, D. H.
- Hono, K.
- Inoue, A.
DOIAbstract
The present letter reports the formation of the icosahedral phase during crystallization of amorphous Zr<sub>65−x</sub> Cu<sub>27.5</sub> Al<sub>7.5</sub> O<sub>x</sub> (x = 0.43% and 0.82%) alloys. Three-dimensional atom probe studies have revealed that the quasicrystalline phase is enriched in oxygen. This, together with the fact that no icosahedral phase forms at low oxygen level (0.14%), clearly establishes that the quasicrystallinephase in Zr-based metallic glasses is stabilized by oxygen
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