Modelling of Al2O3 Powder Compaction with Hot Pressing in a Rigid Die |
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| Authors: | Panfilov Yurii A Shtern Mikhail B |
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| Affiliation: | (1) National Academy of Sciences of Ukraine, Institute for Problems of Materials Science, ul. Krzhizhanovskogo 3, Kiev, Ukraine, 03142 |
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| Abstract: | Computer modelling of hot pressing is provided. Kinetics are described for compaction during hot pressing in a rigid die, and the change in density distribution, irreversible solid phase strain accumulation, and equivalent stresses are studied by means of the finite element method. Shrinkage during the preparation of complex-shaped articles by hot pressing pure Al2O3 powder in a graphite die without a protective atmosphere and the physicomechanical properties of the finished article are studied. Calculated and experimental results agree satisfactorily. |
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| Keywords: | hot pressing modelling compaction deformation porosity boundary diffusion |
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