Preparation and Microstructure of Layered Hydroxyapatite Nanorods on Bioceramic Coatings Using Plasma Electrolytic Oxidation Technique

Abstract:

Plasma electrolytic oxidation (PEO) has been one of the most applicable methods to deposit bioceramic coating on an implant and can provide the possibility for incorporating Ca and P ions. In this study, the titanium substrates were oxidized by optimized electric parameters for 5, 10, 15 and 20 mins respectively during PEO process, to analyze the effect of varied oxidation intensity on the microstructure, phase and element composition of the treated coatings. The results show that the PEO coating of 15 min exhibited excellent advantages of creating favorable microstructure, phase and element composition, and could promote the formation of nanoHA on the treated coating, as a result of some HA nanorods deposited on the surface after 7 days immersion in SBF. The PEO technique proved to be another choice to enhance the bioactivity of titanium and the coating could facilitate the precipitation of nanoHA to functionalize the biomedical materials.

• Periodical: Key Engineering Materials (Volumes 609-610)
• Pages: 68-71
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.609-610.68
• Online since: April 2014
• Authors: Ying Li, Qin Wang, Jian Hong Fang, Qing Gao, Ming Lin, Ji Qin Han, Feng Li, Xin Xu*
• Keywords: Hydroxyapatite (HA), Microstructure, Nanorods, Plasma Electrolytic Oxidation, Preparation

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