Abstract
Past sintering concepts detailed the mass transport for two particles, but because two particles cannot define a pore, they ignored the void phase within the powder compact defined by the network of touching particles. Recent thermodynamic treatments of particle networks have shown that densification is not only limited by mass-transport kinetics, but is also limited by thermodynamic considerations. Specifically, these treatments show that the network can only disappear as the configuration changes through coarsening phenomena. That is, coarsening phenomena reinitiate sintering and lead to densification. These new concepts predict that densification is predictably related to grain growth.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
F. N. Rhines, In Science of Sintering and its Future, ed. M. M. Ristic. International Institute for the Science of Sintering, Belgrade, 1975.
G. C. Kuczynski, Self diffusion in sintering of metallic particles, Met. Trans. AIME 185, 169 – 78 (1949).
H. E. Exner, Principles of single phase sintering, Reviews on Powder Metallurgy and Physical Ceramics 1(1–4), 1 – 251 (1979).
B.J. Kellett and F. F. Lange, Thermodynamics of densification, Part I: Sintering of simple particle arrays, equilibrium configurations, pore stability, and shrinkage. J. Am. Ceram. Soc., 72, 725 – 34 (1989).
E. B. Slamovich and F. F. Lange, Spherical zirconia particles via electrostatic atomization: Fabrication and sintering characteristics. Mat. Res. Soc. Proc. Sym. on Ultrastr. Proc., 121, 617 – 21 (1988).
B. J. Kellett and F. F. Lange, Thermodynamics of densification, Part III: Experimental relation between grain growth and pore closure, to be published.
F.F. Lange and B. J. Kellett, Thermodynamics of densification, Part II: Grain growth in porous compacts and relation to densification. J. Am. Ceram. Soc., 72, 735 – 41 (1989).
F. F. Lange, Powder processing science and technology for increased reliability. J. Am. Ceram. Soc., 72, (1) 3–15 (1989). 70
W. D. Kingery and B. Francois, Sintering of crystalline oxides, I. Interaction between grain boundaries and pores. In Sintering and Related Phenomena, ed. G.C. Kuczynski, N.A. Hooton, and G.F. Gibbon. Gordon & Breach, New York, 1967, pp. 471 – 98.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1990 Elsevier Science Publishers Ltd
About this chapter
Cite this chapter
Lange, F.F. (1990). Contributions of Sintering and Coarsening to Densification: A Thermodynamic Approach. In: Sōmiya, S. (eds) Advanced Ceramics III. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-0763-8_4
Download citation
DOI: https://doi.org/10.1007/978-94-009-0763-8_4
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-6829-1
Online ISBN: 978-94-009-0763-8
eBook Packages: Springer Book Archive