Surface Spreading and Penetration of Liquid and Solid Ga in Thin Polycrystalline Ag Films

Abstract:

Article Preview

Spreading of liquid and solid Ga over the surface of thin polycrystalline Ag film is accompanied by fast penetration of Ga through the film. The penetration process between +60°C and –10°C has likely a common mechanism with the spreading. The activation energies of the process responsible for spreading/penetration are EL = 0.3±0.05 eV and ES = 0.5±0.1 eV for liquid and solid Ga, respectively. The common mechanism is attributed to grain boundary (GB) grooving with diffusion of Ag out of the groove either via liquid Ga or along GBs in solid Ga. A possible formation of intermetallic compound between Ag and Ga is considered as the secondary process, which does not control the kinetics. The model reproduces the spreading/penetration rates that are observed, and gives reasonable estimates of the experimental activation energies ES and EL.

Info:

Periodical:

Edited by:

B.S. Bokstein and B.B. Straumal

Pages:

219-226

DOI:

10.4028/www.scientific.net/DDF.249.219

Citation:

E. E. Glickman et al., "Surface Spreading and Penetration of Liquid and Solid Ga in Thin Polycrystalline Ag Films", Defect and Diffusion Forum, Vol. 249, pp. 219-226, 2006

Online since:

January 2006

Export:

Price:

$35.00

[1] E. Glickman and M. Nathan: J. Appl. Phys. Vol. 85 (1999), p.3185.

[2] M. N. Marie, K. Wolski and M. Biscondi: Scripta Mater. Vol. 43 (2000), p.943.

[3] E. Pereiro-Lopez, W. Ludwig and D. Bellet: Acta Mater. Vol. 52 (2004), p.321.

[4] D. Chatain, E. Rabkin, J. Derenne and J. Bernardini: Acta Mater. Vol. 49 (2001), p.1123.

[5] H. Vogel and L. Ratke: Acta Metall. Mater. Vol. 39 (1991), p.641.

[6] E. Rabkin: Scripta Mater. Vol. 39 (1998), p.685.

[7] A. Vilenkin: Def. Diff. Forum Vol. 216-217 (2003), p.189.

[8] M. Baren: Bull. Alloy Phase Diagrams Vol. 18 (1990), p.334.

[9] L. Kaur and W. Gust: Handbook of Grain and Interphase Boundary Diffusion Data, Vol. 1, (Ziegler Press, Stuttgart, Germany 1989).

[10] W. Mullins: Trans. Met. Soc. AIME Vol. 218 (1960), p.354; J. Appl. Phys. Vol. 28 (1957), p.333.

[11] K. N. Tu, A. M. Gusak and M. Li : J. Appl. Phys. Vol. 93 (2003), p.1335.

[12] D. R. Wilson: Structure of Liquid Metals (Institute of Metals, London, 1965).

[13] B. Straumal and B. Baretzky: Def. Diff. Forum Vol. 216-217 (2003), p.53.

[14] D. Josell and F. Spaepen: MRS Symp. Proc. Vol. 239, eds. W. Nix et al. (MRS Society, Pittsburgh 1992), p.515.

[15] I. Kaur and W. Gust: Fundamentals of Grain Boundary and Interphase Boundary Diffusion, 2 nd edition (Ziegler Press, Stuttgart, Germany 1989).

[16] E. Glickman, N. Eliaz, L. Budic and M. Levenshtein: to be submitted.

In order to see related information, you need to Login.