Table of Contents
ISRN Metallurgy
Volume 2013, Article ID 429818, 5 pages
http://dx.doi.org/10.1155/2013/429818
Research Article

Electrochemical Fabrication of Niobium Silicon Alloys from Oxide Powder Mixtures

School of Materials Science and Engineering, Beihang University, No.37 Xueyuan Road, Haidian District, Beijing 100191, China

Received 14 January 2013; Accepted 31 January 2013

Academic Editors: Y. S. Chang, P. Lukac, A. Pinkerton, and Y.-d. Wang

Copyright © 2013 Fanke Meng and Huimin Lu. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

NbSi alloys were prepared by direct electrochemically reducing four mixed Nb2O5 and SiO2 powders (Nb-10Si, Nb-20Si, Nb-30Si, and Nb-37.5Si) in molten CaCl2 electrolyte at 900°C. The samples were characterized with scanning electron microscope (SEM), X-ray diffraction (XRD), and energy-dispersive X-ray spectroscopy (EDX). No oxidized phases were remained by XRD tests. Under SEM, Nb phase was scattered in Nb5Si3 phase for the samples of Nb-10Si, Nb-20Si, and Nb-30Si. For the sample of Nb-37.5Si, only Nb5Si3 was obtained after electrolysis.