Microstructure and Wear Behaviour of Ti Reinforced HVOF Coating

7th International Conference on Advanced Materials and Structures

Szabo, A.^1 ; Utu, I.D.^1 ; Hulka, I.^1 ; Bordeasu, I.^1 ; Mitelea, I.^1

Politehnica University of Timisoara, Timisoara, EU, Romania^1

关键词: Aluminium oxide;    High velocity oxygen fuel(HVOF);    Osseointegration;    Phase identification;    Pin-on-disk method;    Titanium substrates;    Wear behaviours;    X-ray diffraction techniques;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/416/1/012007/pdf
DOI  :  10.1088/1757-899X/416/1/012007

来源: IOP

【 摘 要 】

In order to improve the wear resistance and biocompatibility of titanium, which is well known as a common orthopaedic and dental implants material, aluminium oxide (Al2O3)-hydroxyapatite (HA) composite coatings were deposited onto titanium substrate using high velocity oxygen fuel (HVOF) thermal spraying process. The microstructure of the Ti reinforced HVOF coating was investigated by scanning electron microscopy (SEM) and phase identification was performed using X-Ray diffraction techniques (XRD). The surface properties of the titanium substrate before and after Al2O3-HA coating deposition in terms of roughness and wear resistance, using pin on disk method, were determined. The obtained results showed that Al2O3-HA coatings can extremely improve the wear resistance of the titanium substrate. A higher roughness of the coating evidently has a positive effect onto the adhesion of the implant osseointegration.