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Yasenchuk, Y., Artyuhova, N., Almaeva, K., Garin, A., & Gunther, V. (2017). Segregation in Porous NiTi Made by SHS in Flow Reactor. KnE Materials Science, 2(1), 168-175. https://doi.org/10.18502/kms.v2i1.793

https://doi.org/10.18502/kms.v2i1.793

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authors

  • Yu. Yasenchuk
    No author data available.
  • N.V. Artyuhova
    No author data available.
  • K.V. Almaeva
    No author data available.
  • A.S. Garin
    No author data available.
  • V.E Gunther
    No author data available.

Published Date

  • Jul 17, 2017

Segregation in Porous NiTi Made by SHS in Flow Reactor

KnE Materials Science / Shape Memory Biomaterials and Implants in Medicine (SMBIM) / Pages 168-175

Abstract

The research considers the contribution of gases to the surface formation during self-propagating high-temperature synthesis (SHS) of porous titanium nickelide based alloys. The structure of the obtained porous alloys was analyzed using the methods of secondary ion mass spectrometry (SIMS), optical microscopy, scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Nanocrystalline intermetallic oxycarbonitrides of a complicated structure were found on the porous titanium nickelide surface. A dense double gradient layer was found under the outer loose deposits. It is concluded that the dense gradient layer of intermetallic oxycarbonitride provides chemical passivity of the investigated porous alloys. Loose surface deposits of intermetallic oxycarbonitrides ensure successful integration of the alloy into the biological tissue in case of implantation. 

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