Abstract:
The process of nanopowder compaction has been studied by the method of granular dynamics. The interaction of particles involves the elastic Hertz forces, tangential friction forces, and dispersive attraction forces. The curves of uniaxial compaction on the “axial pressure–compact density” plane are analyzed. Calculations have been performed for powders with particle sizes from 10 to 100 nm. It is shown that the allowance for dispersive attraction forces ensures adequate description of the size effect in nanopowder compaction.
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