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Nanostructured Shape Memory Alloys. Final Technical Report.


DE2006841686

Publication Date 2006
Personal Author Bakke, P.; Crone, W.; Drugan, W.; Ellis, A.; Perepezko, J.
Page Count 14
Abstract With this grant we explored the properties that result from combining the effects of nanostructuring and shape memory using both experimental and theoretical approaches. We developed new methods to make nanostructured NiTi by melt-spinning and cold rolling fabrication strategies, which elicited significantly different behavior. A template synthesis method was also used to created nanoparticles. In order to characterize the particles we created, we developed a new magnetically-assisted particle manipulation technique to manipulate and position nanoscale samples for testing. Beyond characterization, this technique has broader implications for assembly of nanoscale devices and we demonstrated promising applications for optical switching through magnetically-controlled scattering and polarization capabilities. Nanoparticles of nickeltitanium (NiTi) shape memory alloy were also produced using thin film deposition technology and nanosphere lithography. Our work revealed the first direct evidence that the thermally-induced martensitic transformation of these films allows for partial indent recovery on the nanoscale. In addition to thoroughly characterizing and modeling the nanoindention behavior in NiTi thin films, we demonstrated the feasibility of using nanoindention on an SMA film for write-read-erase schemes for data storage. This research has resulted in six journal publications, seven conference proceedings, two masters degrees, and two Ph.D. degrees.
Keywords
  • Shape memory alloys
  • Nanostructures
  • Composite materials
  • Deposition
  • Thin films
  • Lithography
Source Agency
  • Technical Information Center Oak Ridge Tennessee
Corporate Authors Wisconsin Univ.-Madison.; Department of Energy, Washington, DC.
Supplemental Notes Sponsored by Department of Energy, Washington, DC.
Document Type Technical Report
NTIS Issue Number 200614
Nanostructured Shape Memory Alloys. Final Technical Report.
Nanostructured Shape Memory Alloys. Final Technical Report.
DE2006841686

  • Shape memory alloys
  • Nanostructures
  • Composite materials
  • Deposition
  • Thin films
  • Lithography
  • Technical Information Center Oak Ridge Tennessee
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