Sunday 26th of February 2017
Iranian and Italian researchers produced nanostructured composite to synthesize optimized in vivo implants
The laboratorial composite has been optimized both in anti-corrosive and mechanical properties.
Production of in vivo implants for the treatment of damaged dental or bone tissues has attracted the attention of researchers in the field of bioengineering. Magnesium and its alloys can be used as biocompatible implants due to their biocompatibility. However, they have not been used in a commercial manner. The reason is the low corrosion resistance of these materials inside the body. Numerous methods have been used to optimize the properties of these materials.
This research tries to simultaneously improve corrosion and mechanical properties of magnesium-based composite through a thermodynamic method. The optimized composite has applications in the production of in vivo objects. The final composite has better mechanical and anti-corrosive properties than the similar products and it has higher performance inside the body.
In this research, friction stir thermomechanical process has been used to create a nanocomposite structure, containing magnesium and hydroxyapatite. This process also creates the desired tissue in the operation zone, which results in increasing corrosion resistance. In addition, nanoparticles are the reason for the increase in mechanical resistance.
Results of the research have been published in Corrosion Science, vol. 104, 2016, pp. 319-329.