Preparation of Nb-40Ti Powders by High-Energy Milling

Abstract:

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Porous Ti-Nb alloys are promising candidates for biomedical applications. In the present study, alloy powders containing 60 wt-% Nb were prepared by high-energy milling of Nb, Ti, and/or TiH2 powders. The high-energy milling process was carried out in a planetary ball mill. The starting and as-milled materials were characterized by X-ray diffraction (XRD), and scanning electron microscopy (SEM). Elemental (Nb, and Ti) and TiH2 powder mixtures with composition Nb-40wt%Ti were mechanically alloyed for 2 to 30 h. The formation of a BCC Nb(Ti) solid solution by high-energy milling using elemental Ti powder to produce Nb-40Ti was observed after milling for 30 h. A HCP-Ti solid solution was formed after milling for 30 h due to the partial decomposition of titanium hydride powder mixture during high-energy milling.

Info:

Periodical:

Materials Science Forum (Volumes 498-499)

Edited by:

Lucio Salgado and Francisco Ambrozio Filho

Pages:

146-151

DOI:

10.4028/www.scientific.net/MSF.498-499.146

Citation:

Y.A. Giffoni et al., "Preparation of Nb-40Ti Powders by High-Energy Milling", Materials Science Forum, Vols. 498-499, pp. 146-151, 2005

Online since:

November 2005

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Price:

$35.00

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