Microstructural and Mechanical Characterization of Ti-12Mo-6Zr Biomaterials Fabricated by Spark Plasma Sintering

Daoush, Walid, Park, Hee Sup, Inam, Fawad, Lim, Byung Kyu and Hong, Soon Hyung (2015) Microstructural and Mechanical Characterization of Ti-12Mo-6Zr Biomaterials Fabricated by Spark Plasma Sintering. Metallurgical and Materials Transactions A, 46 (3). pp. 1385-1393. ISSN 1073-5623

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Official URL: http://dx.doi.org/10.1007/s11661-014-2693-3

Abstract

Ti-12Mo-6Zr/Al2O3 (titanium biomaterial) was prepared by a powder metallurgy route using Spark Plasma Sintering (SPS). Ti, Mo, and Zr powders were mixed by wet milling with different content of alumina nanoparticles (up to 5 wt pct) as an oxide dispersion strengthening phase. Composite powder mixtures were SPSed at 1273 K (1000 °C) followed by heat treatment and quenching. Composite powders, sintered materials, and heat-treated materials were examined using optical and high-resolution electronic microscopy (scanning and transmission) and X-ray diffraction to characterize particle size, surface morphology, and phase identifications for each composition. All sintered materials were evaluated by measuring density, Vickers hardness, and tensile properties. Fully dense sintered materials were produced by SPS and mechanical properties were found to be improved by subsequent heat treatment. The tensile properties as well as the hardness were increased by increasing the content of Al2O3 nanoparticles in the Ti-12Mo-6Zr matrix.

Item Type: Article
Additional Information: Published online before print 12th December 2014.
Subjects: F200 Materials Science
F300 Physics
H300 Mechanical Engineering
J200 Metallurgy
J500 Materials Technology not otherwise specified
J700 Industrial Biotechnology
Department: Faculties > Engineering and Environment > Mechanical and Construction Engineering
Depositing User: Becky Skoyles
Date Deposited: 05 Jan 2015 09:24
Last Modified: 07 Oct 2015 15:26
URI: http://nrl.northumbria.ac.uk/id/eprint/18534

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