ZrN coating as a source for the synthesis of a new hybrid ceramic layer

IF 7.5 Q1 CHEMISTRY, PHYSICAL

Applied Surface Science Advances Pub Date : 2024-06-07 DOI:10.1016/j.apsadv.2024.100615

Roman Gabor , Ladislav Cvrček , Marie Kudrnová , Josef Hlinka , Marek Večeř , Matěj Buřil , Jan Walter , Miha Čekada , Aljaž Drnovšek , Petr Unucka , Kateřina Mamulová Kutláková , Oldřich Motyka , Jana Seidlerová

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引用次数: 0

Abstract

The study focuses on an innovative process for the use of a ZrN coating on Ti6Al4V alloy for orthopaedic bone implants. The preparation process combines the technology of physical vapour deposition (PVD) and micro-arc oxidation (MAO) to achieve hydrophobic properties, improved corrosion resistance and enhanced coating adhesion to Ti6Al4V alloy. An alkaline electrolyte and different microarc discharge intensities were used to prepare MAO coatings. The evaluation of the structure and topography of the coatings was performed using SEM with XRPD, EDX, and XPS analysis. The prepared oxide coatings Zr, ZrSiO₄, and ZrTiO₄ increase the corrosion potential depending on the applied source frequency and thus increase the corrosion resistance of the hybrid system. At the same time, the formation of oxide phases leads to changes in surface topography associated with increasing friction coefficient and better wear resistance.

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以 ZrN 涂层为原料合成新型混合陶瓷层

这项研究的重点是在用于矫形骨植入物的 Ti6Al4V 合金上使用 ZrN 涂层的创新工艺。该制备工艺结合了物理气相沉积（PVD）和微弧氧化（MAO）技术，可实现疏水特性、提高耐腐蚀性并增强涂层对 Ti6Al4V 合金的附着力。制备 MAO 涂层时使用了碱性电解质和不同的微弧放电强度。使用扫描电镜结合 XRPD、EDX 和 XPS 分析对涂层的结构和形貌进行了评估。制备的氧化物涂层 Zr、ZrSiO4 和 ZrTiO4 可根据应用的源频率提高腐蚀电位，从而提高混合系统的耐腐蚀性。同时，氧化物相的形成导致了表面形貌的变化，从而提高了摩擦系数和耐磨性。

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