Abstract
The densification of powder compacts, containing larger pores in a fine grain, homogeneous matrix, is considered. Homogenization of the porous microstructure is possible in the intermediate stage of densification due to grain growth driven coalescence of the finer pores, while the coarser pores grow less. The conditions are identified for which homogeneity can be achieved at the end of the intermediate stage. It is found that for finer powders the initial packing perfection, normalized to the grain size, has to increase rapidly. The effects of temperature and the relative merits of monodispersed versus multidispersed powders are also discussed.
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© 1987 Plenum Press, New York
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De Jonghe, L.C., Rahaman, M.N., Lin, M. (1987). The Role of Powder Packing in Sintering. In: Pask, J.A., Evans, A.G. (eds) Ceramic Microstructures ’86. Materials Science Research, vol 21. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-1933-7_46
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DOI: https://doi.org/10.1007/978-1-4613-1933-7_46
Publisher Name: Springer, Boston, MA
Print ISBN: 978-1-4612-9074-2
Online ISBN: 978-1-4613-1933-7
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