Nano Archive

Evolution of Nano-structured Products in Mechanical Alloying of Ni and Ti with or without Process Control Agent

Rusop, M. and Soga, T. (2009) Evolution of Nano-structured Products in Mechanical Alloying of Ni and Ti with or without Process Control Agent. NANOSCIENCE AND NANOTECHNOLOGY, 1136 Pages: 825-829 Published: 2009 . pp. 825-829. ISSN 0094-243X

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Abstract

Mechanical alloying technique was employed to produce nano-structured NiTi compound using elemental mixture with equiatomic composition. Also, addition of 2% process control agent (stearic acid, methanol or ethanol) was examined. A relatively fast reaction was found between Ni and Ti in the absence of PCAs and formation of B2-NiTi nano-crystallites were detected using XRD and TEM after 30h of milling. The mean particle and crystallite size were similar to 2 mu m and similar to 30nm, respectively. Using ethanol, methanol or stearic acid as PCA, resulted in the reduction of the milled products to similar to 90nm (exhibited by SEM), but no NiTi phase formed. Instead the milled products were found to be contaminated by oxygen.

Item Type:Article
Subjects:Physical Science > Nanophysics
Physical Science > Nano objects
Material Science > Nanochemistry
Material Science > Nanostructured materials
Divisions:Faculty of Engineering, Science and Mathematics > School of Physics
Faculty of Engineering, Science and Mathematics > School of Chemistry
ID Code:7763
Deposited By:JNCASR
Deposited On:16 Nov 2009 10:28
Last Modified:16 Nov 2009 10:28

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