Densification of Nano-Sized Alumina Powders under Radial Magnetic Pulsed Compaction
An influence of aggregation degree of alumina nanopowder and of radial magnetic pulsed compaction conditions on the powder densification and on the density distribution inside compacts has been investigated experimentally. The usage of radial magnetic pulsed compaction allows to compact alumina nanopowders up to high densities at low degree of aggregation. The compacts homogeneity is attained by appropriate compaction pulse duration and by the usage of powder packing prior to compaction until the condition with high local sound speed is achieved.
S. Paranin et al., "Densification of Nano-Sized Alumina Powders under Radial Magnetic Pulsed Compaction", Advances in Science and Technology, Vol. 45, pp. 899-904, 2006