在模拟体液中评估掺入了 ZrO2 纳米粒子的等离子电解氧化 TiO2 涂层在 Cp-Ti 上的磨损特性

IF 7.5 Q1 CHEMISTRY, PHYSICAL
Maryam Molaei , Arash Fattah-alhosseini , Meisam Nouri , Mosab Kaseem
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引用次数: 0

摘要

在含有分散 ZrO2 纳米粒子的电解质溶液中,采用等离子电解氧化(PEO)工艺在 Cp-Ti 上制备了含有 ZrO2 纳米粒子的 TiO2 氧化物涂层。分别使用扫描电子显微镜(SEM)、粗糙度轮廓仪和 X 射线衍射仪(XRD)分析了涂层的微观结构、粗糙度和成分。在模拟体液(SBF)电解液中进行的球盘滑动测试检验了涂层的摩擦和磨损特性。制备的氧化物涂层具有粗糙多孔的表面结构,主要由金红石型和/或锐钛矿型 TiO2、四方 ZrO2 和 ZrTiO4 组成。ZrO2 纳米颗粒与 TiO2 涂层层结合在一起,出现在表面或孔隙中。氧化物涂层的磨损和摩擦行为受电解质溶液中纳米 ZrO2 量(1 g/L、3 g/L 和 5 g/L)的影响。当电解液中的 ZrO2 纳米粒子浓度从 1 g/L 增加到 5 g/L 时,涂层的耐磨性得到改善,磨损率降低了约 8%(从 2.31 × 10-6 mm3/Nm 降至 2.11 × 10-6 mm3/Nm),这是因为涂层中形成了更多更坚硬的 ZrO2 和 ZrTiO4 相。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Assessing the wear properties of plasma electrolytic oxidation TiO2 coatings incorporated ZrO2 nanoparticles on Cp-Ti in simulated body fluid

TiO2 oxide coatings incorporated ZrO2 nanoparticles were prepared on Cp-Ti using the plasma electrolytic oxidation (PEO) process in electrolyte solutions containing dispersed ZrO2 nanoparticles. The coatings’ microstructure, roughness, and composition were characterized using scanning electron microscopy (SEM), roughness profilometry, and X-ray diffractometry (XRD) analyses, respectively. The coatings’ friction and wear characteristics were examined using a ball-on-disk sliding test in a simulated body fluid (SBF) electrolyte. The as-prepared oxide coatings had a rough and porous surface structure, primarily consisting of rutile and/or anatase TiO2, tetragonal ZrO2, and ZrTiO4. ZrO2 nanoparticles were incorporated into the TiO2 coating layers and were found on the surface or in the pores. The wear and friction behavior of the oxide coatings were influenced by the quantity of ZrO2 nanoparticles (1 g/L, 3 g/L, and 5 g/L) in the electrolyte solution. The wear resistance of coatings improved by decreasing the wear rate by about 8 % (from 2.31 × 10−6 mm3/Nm to 2.11 × 10−6 mm3/Nm) when the ZrO2 nanoparticles concentration in the electrolyte solution rose from 1 g/L to 5 g/L, because of the formation of more of harder ZrO2 and ZrTiO4 phases in the coatings.

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CiteScore
8.10
自引率
1.60%
发文量
128
审稿时长
66 days
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