Šuliková Michaela.
Safarik University in Kosice, Slovak Republic
Title: Ti-Si biocompatible materials for orthopedics applications
Biography
Biography: Šuliková Michaela.
Abstract
Titanium alloys are widely used in biomedical applications because of their higher biocompatibility, excellent corrosion resistance, low elastic modulus in comparison to other metallic biomaterials. However, they commonly contain aluminium, vanadium, chromium, cobalt, manganese etc., which ions cause damage human tissues. We decided to develop a low-density alloy with a high hardness that will be biocompatible and cost-effective.Ti and Si are biocompatible elements, moreover Si support bone calcification. We prepared and characterize five Ti-Si alloys. One of the five is monophase alloy, consisting of sole Ti5Si3. Microstructure was examined by synchrotron X-rays diffraction and high resolution transmission electron microscopy. This alloy is almost 300% harder compared the implants used, today. Mass density of the alloy is 4.27 g/cm3, while modulus of elasticity is 187 GPa. All Ti-Si alloys are biocompatible asertaineded in respect to MC3T3E1 mouse preosteoblastic cells. In the poster I will present preparation, phase composition, microstructure morphology, biocompatibility and basics mechanical properties of five Ti-Si intermetallic alloys.