Abstract
Cold compaction behaviour of a silicon carbide powder with and without additives has been studied with a constant loading rate of 150 MPa per minute. Results reveal higher compaction with increasing pressure which is further enchanced with the aid of some additives, especially lanolin. Extent of densification appears to be independent of loading rate within the range studied in this investigation. Analysis of the data supports two stages of densification as was postulated by Cooper and Eaton. They are (a) the filling-up of pores and (b) the fragmentation of particles at higher pressures. The increase in the ratio of contact area to total surface area with increasing densification has been calculated using simple geometric shapes and its effect on densification kinetics has been discussed.
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© 1987 Plenum Press, New York
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Chaklader, A.C.D., Bhattacharya, S.K. (1987). Effect of Additives on the Cold Compaction Behaviour of SiC Powder. In: Kuczynski, G.C., Uskoković, D.P., Palmour, H., Ristić, M.M. (eds) Sintering’85. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-2851-3_39
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DOI: https://doi.org/10.1007/978-1-4613-2851-3_39
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