Contribution to Study of the Sintering Mechanism

Abstract:

In all process based in powder and in particular in the rotational moulding process, the major physical phenomenon during the flow of the powders is the sintering and grains growth. The sintering is the formation of only one particle starting from two or many particles under the effect of the temperature and the forces of surface tension. We interest in this study in particular at the mechanism of Polyvinylidene fluoride (PVDF) sintering. The results of this study can enable us to maximize our knowledge about sintering mechanism and enable us to determine parameters such as the speed of sintering for the optimization of the process.

• Periodical: Applied Mechanics and Materials (Volume 697)
• Pages: 51-56
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.697.51
• Online since: November 2014
• Authors: Wei Wei Du, Lyes Douadji*
• Keywords: Fluid Mechanics, Heat Transfer, Materials Processing, Simulation, Sintering

References

[1] D. Aramazotti, Plastics Products Design Handbook, ed. E. Miller, M. Dekker, New York, (1983).

[2] J. Frenkel, Viscous flow of crystalline bodies under action of surface tension. J. Phys. (USSR) 9 (1945) 385.

[3] Thümmler F., Thomma W., The sintering process, Metall. Reviews, (1967) 12, 69.

[4] Dedrick J.H., Gerds A., A study of the mechanisms of sintering of metallic particles, J. App. Phys., 20 (11), (1949)1042-1044.

DOI: 10.1063/1.1698271

[5] Coble R.L., Sintering crystalline solids. I. Intermediate and final state diffusion models, J. App. Phys., 32 (5), (1961) 787-792.

DOI: 10.1063/1.1736107

[6] Dong Wook Chae, Min Hyung Kim and Byoung Chul Kim, Temperature dependence of the rheological properties of poly(vinylidene fluoride)/ dimethyl acetamide solutions and their electrospinning, Korea-Australia Rheology Journal Vol. 22, No. 3, (2010).

[7] Eshelby, J. D., Discussion, " in A. J. Shuler, "Seminar on the Kinetics of Sintering, Metals Trans., 185, (1949) 806.

[8] Pokluda ,O., C.T. Bellehumeur and J. Vlachopoulos A modification of Frenkel's model for sintering. AIChE J., 43, (1997) 3253-3256.

DOI: 10.1002/aic.690431213

[9] Hopper, R. W., Plane Stokes Flow Driven by Capillarity on a Free Surface, J . Fluid Mech., 213, (1990) 349.

DOI: 10.1017/s002211209000235x

[10] Kuiken, H. Viscous sintering: the surface-tension-driven flow of a liquid form under the influence of curvature gradients at its surface. Journal of Fluid Mechanics, 214, (1990), 503-515.

DOI: 10.1017/s0022112090000234

[11] Van de Vorst, G. A. L., Modelling and Numerical Simulation of Viscous Sintering, PhD thesis, Eindhoven Univ. of Technology, The Netherlands , (1994).

[12] Rosenzweig, N., and M. Narkis, Sintering Rheology of Amorphous Polymers, Poly. Eng. Sci., 21, (1981) 1167.

DOI: 10.1002/pen.760211709

[13] Kuczynski, G. C., Study of the Sintering of Glass,J. Phys., 20, (1949), 1160.

[14] Hornsby, P. R., and A. S. Maxwell, Mechanism of Sintering between Polypropylene Beads, J. Mater. Sci., 27, (1992) 2525.

DOI: 10.1007/bf01105065

[15] Bellehumeur, C. T., M. K. Bisaria, and J. Vlachopoulos, An Experimental Study and Model Assessment of Polymer Sintering, Po&. Eng. Sci., 36, (1996) 2198.

DOI: 10.1002/pen.10617

[16] Lontz J.F., Sintering of polymer material, in Fundamental Phenomena in the Material Sciences, Vol. 1, Bonis and Hausner ed., Plenum Press, New-York, (1964).

[17] Mazur, S., and D. J. Plazck, Viscoelastic Effects in the Coalescence of Polymer Particles, Prog. Org. Coar., 24, (1994) 225.

[18] Du WeiWei, Un model Numérique et expérimental dans le cas de rotomoulage, Edition Universitaire Européenne, Germany, (2013).