Sintered Compacts of Co-Cr Powders Doped with HAp and ZrO2 Used in Implantology

Additive manufacturing (AM) methods are widely used in the industrial production, such processes being controlled by a computer, that permit to create three-dimensional object by depositing materials, usually in layers. The objective of this article was to realize sintered compacts of Co-Cr powder doped with ZrO2 and with HAp, necessary to improve the bioactivity for the medical implants. For this study, the samples were immersed in simulated biological fluid (SBF) for 21 days. The samples were doped with different percentage of HAp, respectively ZrO2. The morphology and the structure of the sintered compact samples were establish using a scanning electron microscope, realizing mapping analysis. In this study were remarked that the sintered samples of Co-Cr doped with ZrO2, don’t present the growth of HAp, but the sintered samples of Co-Cr present after immersion in SBF, an increase of new nucleons of HAp, especially for the sintered samples of Co-Cr doped with 10% HAp.