Abstract
The radial shrinkage during sintering of cylindrical compacts and loose aggregates of copper powder was measured. It was found to be nonuniform from top to bottom of the samples and to depend upon the method of supporting them. The nonuniformity is due to the effect of gravity forces during sintering. Since gravity has an effect in sintering without externally applied stresses, no sharp dividing line can be drawn between conventional sintering and hot pressing.
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Literature cited
F. V. Lenel, H. H. Hausner, A. E. Shanshoury, J. G. Early, and G. S. Ansell, The Driving Force for Shrinkage in Copper Powder Compacts During the Early Stages of Sintering, Powder Metallurgy, No. 10 (1962), p. 190.
F. V. Lenel, H. H. Hausner, E. Hayashi, and G. S. Ansell, Some Observations on the Shrinkage Behavior of Copper Compacts and of Loose Powder Aggregates, Powder Metallurgy, No. 8 (1961), p. 25.
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This article was kindly contributed by Dr. Henry H. Hausner.
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Lenel, F.V., Hausner, H.H., Roman, O.V. et al. The influence of gravity in sintering. Powder Metall Met Ceram 2, 379–384 (1963). https://doi.org/10.1007/BF01194674
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DOI: https://doi.org/10.1007/BF01194674