Paper Title:
Fabrication of Titania Film on NiTi Alloy by a Deposition-Assisted Advanced Oxidation Method
  Abstract

A graded titania film was formed on chemically polished NiTi shape memory alloy (SMA) by a novel deposition-assisted advanced oxidation method in a modified Fenton’s reagent containing titanium tetrachloride and then characterized by SEM and XPS. The effects of the titania film on leaching of harmful Ni ions from the NiTi substrate in simulated body fluids (SBF) is assessed by inductively-coupled plasma mass spectrometry (ICPMS). The results indicate that a thick and dense titania film was successfully fabricated in this in situ advanced oxidation reaction assisted with an additional deposition process by the hydrolysis of titanium tetrachloride on NiTi. The titania film can dramatically reduces Ni leaching from NiTi. XPS depth profiles show that the film possesses a smooth graded interfacial structure that boost mechanical stability.

  Info
Periodical
Advanced Materials Research (Volumes 47-50)
Edited by
Alan K.T. Lau, J. Lu, Vijay K. Varadan, F.K. Chang, J.P. Tu and P.M. Lam
Pages
310-313
DOI
10.4028/www.scientific.net/AMR.47-50.310
Citation
C.L. Chu, T. Hu, S.L. Wu, C.Y. Chung, K.W.K. Yeung, P. K. Chu, "Fabrication of Titania Film on NiTi Alloy by a Deposition-Assisted Advanced Oxidation Method", Advanced Materials Research, Vols. 47-50, pp. 310-313, 2008
Online since
June 2008
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Price
$32.00
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