DEVELOPMENT OF BIOACTIVE COATING ONTO COBALT BASE ALLOY BY ND:YAG LASER TREATMENT

Digest Journal of Nanomaterials and Biostructures

J. C. Ortiz-Cuellar¹ 

关键词: Laser treatment;    Cobalt ASTM F75;    Hidroxyapatite;    Bioactivity;   

DOI  :  

学科分类：生物技术

来源: Institute of Materials Physics

【 摘 要 】

In this investigation, a coating of Hydroxyapatite (HAp) powders was made to the ASTM F75 cobalt base alloy to generate a dense coat of Hap using technique the Nd: YAG of laser deposition and generating a union on the surface by fusion using pulses, varying the parameters: power, energy by pulses, scanning speed and repetition frequency by pulses. Subsequently the coatings were immersed in SBF to evaluate their bioactivity in vitro after 21 days, the coatings were characterized by X-ray diffraction (XRD), to identify the phases present on the surface and by scanning electron microscopy (SEM) to evaluate the structure and surface morphology, the atomic composition of the material deposited on the samples was determined by X-ray energy dispersion spectroscopy (EDS). The results showed the presence of the phases of the alloy and hydroxyapatite, without encountering undesirable phases, on the other hand, the formation and nucleation of apatite on the surface after in vitro tests was confirmed, confirming that this deposition technique It is feasible to be applied for cobalt base alloys.

【 授权许可】

Unknown