[Deformation phenomena occurring during compression. I]

Tablets were prepared from sodium chloride of given granule size with 4, 12 and 20 kN pressing force. Pressing was regulated in order to get maximum pressing force effect for 0.1 s, 30 s and 60 s. With the intention of studying deformation changes texture investigation of breaking surface of tablets was carried out by scanning electron microscope. Investigation results documented with photos of different enlargement showed that both pressing force and pressing force effect influenced deformation changes and also structure of tablets. Increase of time of pressing force effect resulted in perfection of deformation changes.