Biocompatibility of medical implants is a long-sought goal of the physical sciences and medical research communities. This concept refers to a material’s capacity to induce a response adequate to a bone host. However, identifying materials which are fulfilling this requirement for a wide range of different applications is still an unresolved issue. In this paper, are analyzed the properties of TiMo20SixZr7Ta15 alloys with different ratios of Si (x=0; 0.5; 0.75;1.0) with possibilities of use for medical applications, using a set of complementary testing methods based on X-ray diffraction, scanning electron microscopy coupled with energy dispersive X-ray spectroscopy and resonant ultrasound spectroscopy (RUS). Across the compositions, the methods emphasize the mechanical properties of the sample, their microstructural characteristics, hardness and mechano-elastic properties, in order to establish a correlation between the structural parameters and mechanical properties of the sample, which are crucial in the understanding the feasibility of incorporating these alloys into prosthetics.
Zirconium oxide doped with rare earth elements (Y, Ce, etc.) is an important candidate material for incorporation in medical implants and prosthetics. Due to their mechanical properties, the doped compounds hold a unique place among the oxide ceramics since they can undergo phase transformations allowing a toughening mechanism. We aim to determine the influence of different types of thermal treatments for Zr1-xCexO2 (x=0.1; 0.15; 0.20) as well as the structural and mechanical properties of these materials using X-ray and Neutron Diffraction (ND) as well as high resolution of SEM imaging combined with Electron Backscattered Diffraction (EBSD). Our analyses have shown that, following the doping mechanism, the samples exhibit stable crystallographic structures but also improved material strengths, which can make these compounds suitable for a wide range of promising clinical applications.
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