Abstract
The increase in number of surgeries for bone exchanging and repairing allowed researches and use of biomaterials due to their biocompatibility and low cost when compared to other materials used as implants. Hydroxyapatite is one of the most used material for tissue engineering because it is part of the bone matrix. However, hydroxyapatite has low mechanical strength and it is necessary to mix it with other materials to improve that property. Alumina is a bioinert material which has been used as mechanical reinforcement for hydroxyapatite. This research aimed to develop hydroxyapatite-alumina ceramic scaffolds by the polymeric sponge method, with compositions of 50%-50%, 60%-40% and 70%-30% by weight. The samples were calcined at 550 ºC and sintered at 1250, 1300 and 1350 ºC for microstructural analysis. The results were in accordance to literature, and it is recommended to do physical-mechanical essays.
Keywords:
bioceramics; hydroxyapatite; alumina; polymeric sponge method
