Applying Nanocomposite Coatings to Improve Orthopedic Alloys by Using Multiple Flame Spray
نویسندگان
چکیده
Due to their excellent mechanical and biocompatibility characteristics, CoCr-based alloys are frequently employed in orthopaedic implant applications. It is necessary maximize general corrosion resistance, ion release. Despite several benefits, coating with torch flame spray has weaker adherence. As a result, powder metallurgy was combine Si Nb elements CoCr alloys. CoCrNb CoCrSi were sprayed multiple flames apply two different kinds of Nano-coatings (A: 75% HAP+ 25% SiC, B: Zeolite+ ZrO2). In samples, alloying added at concentration 5 wt.%. Various characterization methods employed, such as field emission scanning electron microscopy (FESEM) or energy dispersive X-ray spectroscopy (EDS), an release test, atomic absorption (AAS), wear measurement, force (AFM), adhesion strength test. According the results, (type A) B) increase resistance alloy. The zeolite+ZrO2 HAP+SiC layers act barriers Co Cr ions from There varying degrees roughness coated which resulted pitting. tensile pull-out tests, two-torch spraying technique provided stronger bond substrate than single-torch technique. general, type B best be implanted where cytotoxicity 0% human body, thus biocompatibility.
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ژورنال
عنوان ژورنال: Ma?allat? al-handasat? wa-al-tikn?l??iy?
سال: 2023
ISSN: ['1681-6900', '2412-0758']
DOI: https://doi.org/10.30684/etj.2023.138886.1410