| Compaction behaviour of monosized ( - 1 jlm) alumina powder
dried (ll0°C) and calcined at different temperatures, viz.
1000°, 1300°, 1375°, 1500° and 1600°C was studied and the
results were analysed on different compaction models in general
and Cooper and Eatons model in particular. The results revealed
that fractional volume compaction (V*) at different forming
pressures depends on the agglomerated structures developed
during calcination along with other parameters, viz. particle
size, shape and hardness. Powder calcined at 1000°C produced
greater compaction compared to powders calcined at other temperatures
at a given forming pressure. Analysis of results according
to Cooper and Eatons model suggested the development
of a property due to the change of morphological
behaviour during calcination at different temperatures. |
