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Materials 2018, 11(2), 181;

Fabrication of Titanium-Niobium-Zirconium-Tantalium Alloy (TNZT) Bioimplant Components with Controllable Porosity by Spark Plasma Sintering

Mechanical Engineering, San Diego State University, 5500 Campanile Dr., San Diego, CA 92182, USA
Tosoh SMD Inc., Grove City, OH 43123, USA
NanoEngineering, University of California, 9500 Gilman Dr., San Diego, La Jolla, CA 92182, USA
Author to whom correspondence should be addressed.
Received: 26 December 2017 / Revised: 21 January 2018 / Accepted: 22 January 2018 / Published: 24 January 2018
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Spark Plasma Sintering (SPS) is used to fabricate Titanium-Niobium-Zirconium-Tantalum alloy (TNZT) powder—based bioimplant components with controllable porosity. The developed densification maps show the effects of final SPS temperature, pressure, holding time, and initial particle size on final sample relative density. Correlations between the final sample density and mechanical properties of the fabricated TNZT components are also investigated and microstructural analysis of the processed material is conducted. A densification model is proposed and used to calculate the TNZT alloy creep activation energy. The obtained experimental data can be utilized for the optimized fabrication of TNZT components with specific microstructural and mechanical properties suitable for biomedical applications. View Full-Text
Keywords: Spark Plasma Sintering; porosity; TNZT; bioimplant Spark Plasma Sintering; porosity; TNZT; bioimplant

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Rechtin, J.; Torresani, E.; Ivanov, E.; Olevsky, E. Fabrication of Titanium-Niobium-Zirconium-Tantalium Alloy (TNZT) Bioimplant Components with Controllable Porosity by Spark Plasma Sintering. Materials 2018, 11, 181.

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