Evaluation of Surface Roughness of Some Biomedical Titanium Alloys by Pack Cementation Coating

Abstract

Titanium possesses a unique ability to bind with bone and living tissue, making it an ideal material for orthopedic implants such as knee and hip replacements. Because of the strength to weight ratio, hermeticity, biocompatibility and light weight makes titanium and its alloy the best choice for implant. The main goal focused on studying the influence of surface coating of some titanium base alloys by Nano (ZrO2&Y2O3) to the surface roughness of implant alloys. Preparation of samples was accomplished by using powder technology technique, in which the raw materials was pure titanium, 10%cobalt,50% nickel, and 30% tantalum powders. The samples were cleaned by ultrasonic device the surface pre- treated by chemical etching, then deposition of nano (ZrO2 with Y2O3) accomplished by pack cementation process. After samples characterization by (X-ray diffraction, hardness test, porosity percentage and Surface roughness). The result showed that diffraction patterns gained for the samples were the phases developed as a result of sintering and after deposition, There are likely no presents of pure metals that prove the time and temperature of sintering utilized in this work results in full sintering reactions, the XRD patterns of samples after (ZrO2,Y2O3) deposition by pack cementation process. It is obvious that Amorphous behavior was observed in the XRD after deposition nearly at 2θ (15.799) for all samples. It is evident that the porosity percent of the samples after (ZrO2, Y2O3) deposition was largely decreases due to the pack cementation process. There was considerable increasing in hardness value, finally the roughness values obtained from the AFM it was found that there are large changes in the roughness value of samples after coating due to full the surface by Nano ceramic material deposition.

Effect of Cordierite Additions on Mechanical Properties of Hydroxyapatite Used in Medical Applications

“…Consequently, and according to Hell-Petch law, the mechanical properties increase with decreasing grain size. From Table 4 and Figure 13, the values of E range between 15-37 GPa, which highly consistent with that of cortical bone [31].…”

Enhancing the Cell Viability and Antibacterial Properties of Composite Layer by Active Particulate Additions

“…FTIR spectrophotometer was utilized to analyze and compare the functional group produced from pure alginate matrix lm sample and the alginate matrix with different metallic particles (Mg particles and Ag nanoparticles). Figures (9) shows the FTIR spectra of sample (1) for pure alginate matrix. The spectrum presented many strong bands of alginate hydrogels.…”

“…Alginate was recently combined with different materials to form alginate composites, meeting additional biomedical needs [7][8] [9] and increasing soft-tissue formation and repair [10] [11]. Alginate is a polymer found in algal cell walls as well as Pseudomonas sp.…”

Comparative Study of Biotin and Hydroxyapatite on Biological Properties of Composite Coating

“…Alginate is also biodegradable because it dissolves gradually in the body when cross-linking means in the alginate discharge and interchange process interact with monovalent cations prevalent in human fluids [ 14 ]. Alginate recently blended with several materials presenting alginate composites providing the needs of other biomedical requirements and improving soft tissue creation and repair [ 15 ]. Blending different kinds of materials, like bioglass, ceramics, inorganic nanoparticles, and inorganic carbon-based materials, have also been investigated [ 16 ].…”