Thermodynamic Modeling of Surface Segregation in Au-Ti Nanoparticles


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The surface composition of nanoparticles is generally different from the average or bulk composition; this phenomenon is commonly referred to as surface segregation. In the present work, the surface segregation in Au-Ti nanoparticles has been analyzed based on a thermodynamic model that incorporates the size effect into the quasichemical model. The calculated surface compositions of Au-Ti nanoparticles are compared with that of the bulk Au-Ti alloys.


Edited by:

M. Gupta and Christina Y.H. Lim




R. Jayaganthan and G. M. Chow, "Thermodynamic Modeling of Surface Segregation in Au-Ti Nanoparticles", Journal of Metastable and Nanocrystalline Materials, Vol. 23, pp. 259-262, 2005

Online since:

January 2005




[1] C. Csehati, I.A. Szabo and D. L. Beke: Journal of Applied Physics Vol. 83, no. 6 (1998), p.3021.

[2] S. Swaminarayan and D.J. Srolovitz: Acta Mater. Vol 44 (1996), p. (2067).

[3] K. Ishida: J. Alloys Compd. Vol 235 (1996), p.244.

[4] A.D. Ortiz, F.A. Granja and J.L. Moran-Lopez: Phys. Rev. B 53 (1996), p.651.

[5] J.W. Gibbs: reprinted in J.W. Gibbs, The Scientific Papers (Dover, New York 1961).

[6] A.L. Greer: in Mechanical Properties and Deformation Behavior of Materials having Ultra- FineMicrostructures, Edited by M Nastasia, H Gleiter, NATO ASIA Series, Series E: Applied Sciences Vol. 233 (1993), p.53.

[7] R. Vallee, M. Wautelet, J.P. Dauchot and M. Hecq: Nanotechnology, Vol 12 (2001), p.68.

[8] R. Jayaganthan and G. M. Chow: Materials Science and Engineering-B Vol 95 (2002), p.116.

[9] M. Wautelet: J. Phys. D: App. Phys. Vol 24 (1991), p.343.

[10] W. Biltz and F. Weibke: Z. Anorg. Allg. Chem. Vol 236 (1938), p.12.

[11] W. Luo, Z. Jin, H. Liu and T. Wang: Calphad, Vol. 25, no. 1 (2001).