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Stability of Ni in nitinol oxide surfaces

Paper ID Volume ID Publish Year Pages File Format Full-Text
999 70 2011 8 PDF Available
Title
Stability of Ni in nitinol oxide surfaces
Abstract

The stability of Ni in titanium oxide surface layers on nitinol wires known to release certain amounts of Ni was investigated by first principles density functional theory and transmission electron microscopy. The oxides were identified as a combination of TiO and TiO2 depending on the thickness of the layer. The calculations indicate that free Ni atoms can exist in TiO at ambient temperature while Ni particles form in TiO2, which was confirmed by the transmission electron microscopy observations. The results are discussed with respect to surface stability and Ni release due to free Ni atoms and Ni particles.

Keywords
Ti oxide; Ni release; Surface protection; Transmission electron microscopy; Density functional theory
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Stability of Ni in nitinol oxide surfaces
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Publisher
Database: Elsevier - ScienceDirect
Journal: Acta Biomaterialia - Volume 7, Issue 2, February 2011, Pages 892–899
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us