Influence of temperature on the compaction and the mechanical strength of an organicpowder

Hélène Goubier (1, 2, 3) , Emilie Rouèche (1, 2, 3) , Eric Serris (1, 2, 3) , Gérard Thomas (1, 2, 3) , Laurent Périer-Camby (1, 2, 3)

1 SPIN-ENSMSE - Centre Sciences des Processus Industriels et Naturels
2 ProcESS-ENSMSE - Département Procédés et évolution des systèmes avec solides
3 LPMG-EMSE - Laboratoire des Procédés en Milieux Granulaires

Classical works made on powder compaction have been developing studies of parameters like the maximum pressure reached, the punch velocity, the duration of isobaric stage, on tablets properties. But the influence of temperature during the compression has been neglected in most cases. Now, most of pharmaceutical and chemical products, in particular organic products, are sensitive to temperature. In this work, the role of temperature on the compressibility of an organic powder commonly used in the industry has been examined. The consequences on the structure and on the mechanical behaviour of the tablets have been studied. The evolution of the porosity, the tablet strength and the fracture aspects have been followed and then analysed during and after the compression.

Keywords: Compression; temperature; organic powder; porosity

Domains: Other

Hélène Goubier, Emilie Rouèche, Eric Serris, Gérard Thomas, Laurent Périer-Camby. Influence of temperature on the compaction and the mechanical strength of an organicpowder. 9th European Interregional Conference on Ceramics, CIEC 9th, 5 au 7 septembre 2004, Sep 2004, Bardonecchia, Italy. ⟨hal-00124935⟩