Guzmán Pablo, Yate Luis, Sandoval Mercy, Caballero Jose, Aperador Willian
School of Engineering, Universidad Militar Nueva Granada, Carrera 11 #101-80, 49300 Bogotá, Colombia.
CIC biomaGUNE, Paseo Miramón 182, 20009 Donostia-San Sebastian, Spain.
Materials (Basel). 2017 Jul 25;10(8):842. doi: 10.3390/ma10080842.
The object of this work was the deposition of a Ta-Hf-C thin film with a gold interlayer on stainless steel, via the physical vapor deposition (PVD) technique, in order to evaluate the properties of different systems subjected to micro-abrasive wear phenomena generated by alumina particles in Ringer's solution. The surface characterization was performed using a scanning electron microscope (SEM) and atomic force microscope (AFM). The crystallographic phases exhibited for each coating were obtained by X-ray diffraction (XRD). As a consequence of modifying the composition of Ta-Hf there was evidence of an improvement in the micro-abrasive wear resistance and, for each system, the wear constants that confirm the enhancement of the surface were calculated. Likewise, these surfaces can be bioactive, generating an alternative to improve the biological fixation of the implants, therefore, the coatings of TaC-HfC/Au contribute in the development of the new generation of orthopedic implants.
这项工作的目的是通过物理气相沉积（PVD）技术在不锈钢上沉积带有金中间层的Ta-Hf-C薄膜，以评估不同系统在林格氏溶液中受到氧化铝颗粒产生的微磨料磨损现象时的性能。使用扫描电子显微镜（SEM）和原子力显微镜（AFM）进行表面表征。通过X射线衍射（XRD）获得每种涂层呈现的晶体相。由于改变了Ta-Hf的成分，有证据表明微磨料耐磨性有所提高，并且针对每个系统计算了证实表面增强的磨损常数。同样，这些表面可能具有生物活性，为改善植入物的生物固定提供了一种替代方案，因此，TaC-HfC/Au涂层有助于新一代骨科植入物的开发。
