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Nanocrystalline tetragonal tantalum thin films

  • M. Zhang
  • , Y. F. Zhang
  • , P. D. Rack
  • , M. K. Miller
  • , T. G. Nieh*
  • *Corresponding author for this work

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

Abstract

Nanocrystalline tetragonal tantalum thin film was prepared by magnetron sputtering. Structure, electrical and mechanical properties of the film were characterized using X-ray diffraction, transmission electron microscopy, four-point probe and nanoindentation. Electrical resistivity of the film was found to be 264.55 μΩ cm at room temperature with negative temperature dependence. Hardness and Young's modulus of the present tetragonal tantalum thin film with a grain size of 32.3 nm were measured to be 15.0 and 193.9 GPa, respectively. © 2007 Acta Materialia Inc.
Original languageEnglish
Pages (from-to)1032-1035
JournalScripta Materialia
Volume57
Issue number11
DOIs
Publication statusPublished - Dec 2007
Externally publishedYes

Bibliographical note

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Research Keywords

  • Electrical resistivity/conductivity
  • Nanocrystalline materials
  • Nanoindentation
  • Refractory metals
  • Thin films

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