Biomedical properties of tantalum nitride films synthesized by reactive magnetron sputtering

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

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Author(s)

  • Y. X. Leng
  • H. Sun
  • P. Yang
  • J. Y. Chen
  • J. Wang
  • G. J. Wan
  • N. Huang
  • X. B. Tian
  • L. P. Wang

Detail(s)

Original languageEnglish
Pages (from-to)471-475
Journal / PublicationThin Solid Films
Volume398-399
Publication statusPublished - Nov 2001

Conference

Title28th International Conference on Metallurgia
PlaceUnited States
CitySan Diego,CA
Period30 April - 30 May 2001

Abstract

The biomedical properties of tantalum nitride thin films synthesized by reactive magnetron sputtering employing orthogonal design technology are investigated. The adhesion properties between the film and substrate can be enhanced by optimizing the sputtering gas pressure and substrate temperature. The hardness of the tantalum nitride films is greatly affected by the nitrogen partial pressure, and our results show that films deposited under the optimal conditions can achieve a hardness value of approximately 40 GPa. The blood compatibility of the tantalum nitride films, as evaluated by clotting time measurement and platelet adhesion tests, is compared to that of TiN, Ta and low-temperature isotropic pyrolytic carbon (LTIC). Our data reveal that the blood compatibility of our tantalum nitride films is better, and tantalum nitride is thus an excellent material for the fabrication of commercial artificial heart valves. © 2001 Elsevier Science B.V. All rights reserved.

Research Area(s)

  • Artificial heart valve, Blood compatibility, Low-temperature isotropic pyrolytic carbon, Mechanical properties, Platelet adhesion, Tantalum nitride

Citation Format(s)

Biomedical properties of tantalum nitride films synthesized by reactive magnetron sputtering. / Leng, Y. X.; Sun, H.; Yang, P.; Chen, J. Y.; Wang, J.; Wan, G. J.; Huang, N.; Tian, X. B.; Wang, L. P.; Chu, P. K.

In: Thin Solid Films, Vol. 398-399, 11.2001, p. 471-475.

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