Hidroxyapatite Coating on CoCrMo Alloy Titanium Nitride Coated Using Biomimetic Method

8th International Conference on Physics and its Applications

Charlena^1 ; Sukaryo, S.G.^1 ; Fajar, M.^1

Department of Chemistry, FMIPA IPB, Kampus IPB, Darmaga IPB, Indonesia^1

关键词: Apatite crystals;    Biomimetic method;    Co-based alloys;    HAp coatings;    Hidroxyapatite;    Metallic material;    Simulated body fluids;    X ray diffractometers;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/776/1/012056/pdf
DOI  :  10.1088/1742-6596/776/1/012056

来源: IOP

【 摘 要 】

Bone implants is a way to cure broken bones which is being developed. The implants can be made of metals, ceramics and polymers. Metallic materials commonly used are titanium (Ti), stainless steel, and metal alloys. This study used Co-based alloys, i.e. CoCrMo coated with titanium nitride (TiN) which was then coated on hidroxyapatite (HAp). The HAp coating on the surface of CoCrMo alloy was done by biomimetic methods, first by soaking the metal alloys in simulated body fluid (SBF) solution for 18, 24, and 36 hours. The immersion in the SBF solution produced white coat on the surface of the metal alloy. The layers formed were analyzed by scanning electron microscope (SEM) and characterized by x-ray diffractometer (XRD). Based on the SEM results of 36 hours treatment, the morphology of apatite crystal formed fine grains. According to XRD result, there were HAp peaks at angles 2θ 31.86, 32.25, dan 39.48. However, there were also CaCO3peaks at angles 2θ 29.46, 36.04, and 46.79. It indicated the pure HAp is not yet formed.