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Crystallization of bulk amorphous Zr-Ti(Nb)-Cu-Ni-Al

Journal Article · · Applied Physics Letters
DOI:https://doi.org/10.1063/1.127032· OSTI ID:20217006
 [1];  [1];  [1];  [1];  [2];  [3]
  1. W. M. Keck Laboratory, California Institute of Technology, Pasadena, California 91125 (United States)
  2. Paul Scherrer Institut, CH-5232 Villigen PSI, (Switzerland)
  3. IPNS Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)

Small-angle neutron scattering (SANS) and transmission electron microscopy were used to resolve the crystallization of the bulk amorphous alloys Zr{sub 52.5}Ti{sub 5}Cu{sub 17.9}Ni{sub 14.6}Al{sub 10} (Vit105) and Zr{sub 57}Nb{sub 5}Cu{sub 15.4}Ni{sub 12.6}Al{sub 10} (Vit106). Decomposition and nanocrystallization were observed in both alloy compositions in the temperature regime from the glass transition, T{sub g}, up to at least 90 K above T{sub g}. From in situ SANS measurements on Vit105, chemical diffusion data were obtained whose temperature dependence follows an Arrhenius law. Normalizing the temperature to T{sub g}, the diffusion data of Vit105 are very similar to those of the well-investigated bulk amorphous alloy Zr{sub 41.2}Ti{sub 13.8}Cu{sub 12.5}Ni{sub 10}Be{sub 22.5}. (c) 2000 American Institute of Physics.

OSTI ID:
20217006
Journal Information:
Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 4 Vol. 77; ISSN APPLAB; ISSN 0003-6951
Country of Publication:
United States
Language:
English