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Biocompatibility and Clinical Application of Porous TiNi Alloys Made by Self-Propagating High-Temperature Synthesis (SHS)

1
Research Institute of Medical Materials, Tomsk State University, Tomsk 634045, Russia
2
Research Institute of Medical Problems of the North, Siberian Branch of the Russian Academy of Sciences, Krasnoyarsk 660017, Russia
3
Kang and Park Medical Co., R&D Center, Ochang 28119, Korea
4
Department of Physical Metallurgy and Materials Technology, Brandenburg University of Technology, 03044 Cottbus, Germany
*
Author to whom correspondence should be addressed.
Materials 2019, 12(15), 2405; https://doi.org/10.3390/ma12152405
Received: 28 June 2019 / Revised: 23 July 2019 / Accepted: 26 July 2019 / Published: 28 July 2019
(This article belongs to the Special Issue Biomaterials and Implant Biocompatibility)
Porous TiNi alloys fabricated by self-propagating high-temperature synthesis (SHS) are biomaterials designed for medical application in substituting tissue lesions and they were clinically deployed more than 30 years ago. The SHS process, as a very fast and economically justified route of powder metallurgy, has distinctive features which impart special attributes to the resultant implant, facilitating its integration in terms of bio-mechanical/chemical compatibility. On the phenomenological level, the fact of high biocompatibility of porous SHS TiNi (PTN) material in vivo has been recognized and is not in dispute presently, but the rationale is somewhat disputable. The features of the SHS TiNi process led to a multifarious intermetallic Ti4Ni2(O,N,C)-based constituents in the amorphous-nanocrystalline superficial layer which entirely conceals the matrix and enhances the corrosion resistance of the unwrought alloy. In the current article, we briefly explore issues of the high biocompatibility level on which additional studies could be carried out, as well as recent progress and key fields of clinical application, yet allowing innovative solutions. View Full-Text
Keywords: porous SHS TiNi; biocompatibility; rheological similarity; corrosion resistance; bone substitution porous SHS TiNi; biocompatibility; rheological similarity; corrosion resistance; bone substitution
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Yasenchuk, Y.; Marchenko, E.; Gunther, V.; Radkevich, A.; Kokorev, O.; Gunther, S.; Baigonakova, G.; Hodorenko, V.; Chekalkin, T.; Kang, J.-H.; Weiss, S.; Obrosov, A. Biocompatibility and Clinical Application of Porous TiNi Alloys Made by Self-Propagating High-Temperature Synthesis (SHS). Materials 2019, 12, 2405.

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