Saccharose particles as a space holder for Ti-void composite preparation
[ 1 ] Instytut Inżynierii Materiałowej, Wydział Budowy Maszyn i Zarządzania, Politechnika Poznańska | [ P ] pracownik
2014
artykuł naukowy
angielski
- biomaterial
- foam
- saccharose
- scaffold
- titanium
- void metal composite
EN In this work a new method of Ti-void composites (foam, scaffold) preparation is shown. In this process as a space holder particles we have applied a saccharose crystals (table sugar) with size up to 1.3 mm. After Ti and saccharose particles mixing and pressing, a green compacts composed of sugar and Ti grains were produced. Then, the sugar crystals were removed by its dissolution in water, which lead to open spaces (pores) formation in the green compacts. Then the compacts were sintered at 1250 °C. Alternatively, a sugar was evaporated during sintering without water dissolution. The foams were investigated by SEM, XRD and computed tomography. Such prepared void metal composites have porosity of about 72% and average pore size of about 0.7 mm. The pores have cubical shape corresponding to sugar crystals shape. The method is very promising in foams preparation and the made Ti-void composites can be applied for hard tissue implants, for example.
3 - 7
7