SAIP2012

The structural and elastic properties of Ti₅₀Pt_50-xCo_x ternaries using solid solution method employed in CASTEP

12 Jul 2012, 17:30

2h

IT Building

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

Speaker

Ms Rosinah Mahlangu (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 Ti₅₀Pt_50-xCo_x 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.

Would you like to <br> submit a short paper <br> for the Conference <br> Proceedings (Yes / No)?

No

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

Prof P.E Ngoepe, University of Limpopo

Apply to be<br> consider for a student <br> &nbsp; award (Yes / No)?

No