In situ synthesis of nanostructured titania film on NiTi shape memory alloy by Fenton's oxidation method

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Cheng-lin CHU
  • Tao HU
  • S. L. Wu
  • Ru-meng WANG
  • Yin-sheng DONG
  • Ping-hua LIN

Detail(s)

Original languageEnglish
Pages (from-to)902-906
Journal / PublicationTransactions of Nonferrous Metals Society of China (English Edition)
Volume17
Issue number5
Publication statusPublished - Oct 2007

Abstract

Fenton's oxidation method was successfully used to synthesize an ideal titania film in situ on NiTi shape memory alloy(SMA) for medical applications. Characterized with scanning electron microscopy, X-ray photoelectron spectroscopy, X-ray diffractometry, inductively coupled plasma mass spectrometry and electrochemical tests, it is found that the titania film produced by Fenton's oxidation method on NiTi SMA is nanostructured and has a Ni-free zone near its top surface, which results in a notable improvement in corrosion resistance and a remarkable decrease in leaching of harmful Ni ions from NiTi SMA in simulated body fluids. The improvement of effectiveness to corrosion resistance and the reduction in Ni release of NiTi SMA by Fenton's oxidation method are comparable to those by oxygen plasma immersion ion implantation reported earlier. © 2007 The Nonferrous Metals Society of China.

Research Area(s)

  • corrosion, Fenton's oxidation, NiTi shape memory alloy(SMA), thin films

Citation Format(s)

In situ synthesis of nanostructured titania film on NiTi shape memory alloy by Fenton's oxidation method. / CHU, Cheng-lin; HU, Tao; Wu, S. L.; WANG, Ru-meng; DONG, Yin-sheng; LIN, Ping-hua; Chung, C. Y.; Chu, P. K.

In: Transactions of Nonferrous Metals Society of China (English Edition), Vol. 17, No. 5, 10.2007, p. 902-906.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review