9-13 July 2012
Africa/Johannesburg timezone
<a href="http://events.saip.org.za/internalPage.py?pageId=11&confId=14"><font color=#ff0000>SAIP2012 PROCEEDINGS AVAILABLE</font></a>

The structural and elastic properties of Ti<sub>50</sub>Pt<sub>50-x</sub>Co<sub>x</sub> ternaries using solid solution method employed in CASTEP

12 Jul 2012, 17:30
IT Building

IT Building

Poster Presentation Track A - Division for Condensed Matter Physics and Materials Poster Session


Ms Rosinah Mahlangu (University of Limpopo)

Main supervisor (name and email)<br>and his / her institution

Prof P.E Ngoepe, University of Limpopo

Abstract content <br> &nbsp; (Max 300 words)

There is a growing demand of shape memory alloys that can be applied at high temperatures and TiPt was found to be one of the potential alloys since the transformation occurs at temperatures more than 1000◦C. Since Pt is expensive, in this work we replace some of the Pt by Co using the solid solution method. The Ti50Pt50-xCox ternaries were determined using the visual crystal approximation (VCA). The structures were optimized and the equilibrium lattice parameters and their formation energy were calculated. The lattice parameters were found to be decreasing minimally with an increase in the Co and the structures become mechanically unstable with respect to the formation of energy. The elastic properties and the density of states were also calculated.

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Primary authors

Prof. PE Ngoepe (University of Limpopo) Ms Rosinah Mahlangu (University of Limpopo)


Dr HR Chauke (University of Limpopo) Mr MJ Phasha (CSIR)

Presentation Materials

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