Authors:
Didier Bouvard (Univ. Grenoble Alpes, France),
Luis Olmos (Universidad Michoacana de San Nicolas de Hidalgo, Mexico),
Jorge Chavez (Universidad de Guadalajara, Mexico),
Rogelio Macías (División de Estudios de Posgrado e Investigación, TecNM|Instituto Tecnológico de Morelia, Mexico)
Abstract:
This works proposes a methodology for fabricating materials with specific characteristics tuned for replacing human bones. A Ti64 alloy powder is used as the base materials and it is mixed with Ag, Ta, TiN and salt particles to obtain different features. A knee-bone like component is fabricated, including a highly porous core of Ti64|25Ta|5Ag and compact outer of Ti64|5Ag that is supposed to improve corrosion and osseointegration. Besides, a harder top surface in Ti64|10TiN composite should increase the wear resistance. The green component is sintered at 1260°C in argon. Its stiffness is close to the one of bones thanks to the added porosity, which also provides a permeability close to the one reported for trabecular bones. Tribocorrosion behavior in simulated body fluid is improved by TiN addition. In conclusion, the proposed processing route is able to produce complex components fulfilling specific features required for human bone replacement.
DOI:
https://doi.org/10.59499/WP225371364