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Amorphization and phase evolution in Fe–Nb films prepared by ion beam assisted deposition

Authors
Journal
Thin Solid Films
0040-6090
Publisher
Elsevier
Publication Date
Volume
415
Identifiers
DOI: 10.1016/s0040-6090(02)00534-5
Keywords
  • Ion Bombardment
  • Amorphous Materials
  • Iron
  • Niobium
Disciplines
  • Physics

Abstract

Abstract The ion beam assisted deposition (IBAD) technique is utilized to study amorphization in Fe–Nb binary metal systems. The amorphous range covers a Nb fraction of approximately 34–60 at.%. The Fe-rich and Nb-rich supersaturated solid solutions of the bcc phase were obtained in Fe 66Nb 34 and Fe 31Nb 69 films, respectively. In the Fe 66Nb 34 films, the ‘amorphous→amorphous+bcc→bcc’ evolution with increased ion beam energy from 2 to 8 keV is observed accompanying changes of film morphology. The phase formation in the IBAD process is determined by both thermodynamic and kinetic factors.

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