Yang Wei, Gao Yu, Guo Peng, Xu Dapeng, Hu Lin, Wang Aiying
School of Materials Science and Chemical Engineering, Xi'an Technological University, Xi'an, 710032, China.
School of Materials Science and Chemical Engineering, Xi'an Technological University, Xi'an, 710032, China.
J Mech Behav Biomed Mater. 2020 Jan;101:103448. doi: 10.1016/j.jmbbm.2019.103448. Epub 2019 Sep 23.
A thin diamond-like carbon (DLC) film, a graphite-like carbon (GLC) film and a thick diamond-like carbon (PE-DLC) film are deposited on the micro arc oxidation (MAO) coated pure titanium substrates using a hybrid ion beam deposition system, magnetron sputtering and plasma enhanced chemical vapor deposition, respectively. The microstructure, adhesion, biological corrosion resistance and biotribological properties were determined. The results showed that the three duplex coatings presented uneven surface features and increased binding force. The binding force of the duplex coatings was strongly affected by the bonding strength between the MAO coating and Ti substrate. Although the roughness Ra of the three duplex coatings was high, their friction coefficients were small (under 0.22) in the SBF solution. The MAO/DLC and MAO/GLC coatings showed an excellent tribological behavior and corrosion resistance in the SBF solution.
使用混合离子束沉积系统、磁控溅射和等离子体增强化学气相沉积法，分别在微弧氧化（MAO）涂层纯钛基底上沉积了一层薄的类金刚石碳（DLC）膜、一层类石墨碳（GLC）膜和一层厚的类金刚石碳（PE-DLC）膜。测定了其微观结构、附着力、生物耐腐蚀性能和生物摩擦学性能。结果表明，这三种双层涂层呈现出不均匀的表面特征且结合力增强。双层涂层的结合力受MAO涂层与钛基底之间的结合强度强烈影响。尽管这三种双层涂层的粗糙度Ra较高，但在模拟体液（SBF）溶液中其摩擦系数较小（低于0.22）。MAO/DLC和MAO/GLC涂层在SBF溶液中表现出优异的摩擦学行为和耐腐蚀性。
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