New materials for reduction of corrosion levels

Abstract:

Introduction: two million people worldwide suffer from arthritis or accident traumas and they are subjected to hip and knee replacements. The research group VOLTA (named after the Italian physicist Alexander Volta) of the Military University Nueva Granada has focused their efforts to submit a new coating for implants. Objectives: to identify a new material thata may help to reduce the implant wear and to avoid adverse biological reactions with the tissues. Methods: the new materials that the VOLTA group suggests are based on Titanium and Aluminum atoms to replace the implant materials used in present surgery. This material has been tested to determine the biological compatibility and the corrosion resistance. The suggested coating material produces a kinetic barrier that prevents real corrosion reactions. Results: the first test to characterize the coating material was the hardness test. An additional experiment was Rockwell's test under the ASTM E18 standard to obtain information about the metallic coating material. The resulting data include traction resistance, wear resistance and malleability of the coating material. The test was performed within a diameter that was not considered as destructive. Conclusions: the research group VOLTA performed testing on knee prosthesis and used the new recommended material for extending the device's lifetime and improving compatibility.

Año de publicación:

2015

Keywords:

• Hip replacement
• Knee replacement
• Biomaterials
• coatings
• Prosthesis

Fuente:

scopus