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南海海洋大气环境二硫化钼纳米多层薄膜摩擦学行为研究
Authors
商克栋
张广安
+5 more
王立平
蒲吉斌
薛群基
郑韶先
鞠鹏飞
Publication date
1 January 2018
Publisher
Abstract
MoS_2薄膜在湿热大气环境长期存储后,由于严重的氧化导致其摩擦学性能大幅劣化,通常表现出较高的摩擦系数和较短的使用寿命.为了改善MoS_2薄膜在湿热大气环境下的抗氧化和摩擦学性能,通过非平衡闭合场磁控溅射技术制备了MoS_2/Pb-Ti纳米多层薄膜,首次研究了MoS2纳米多层复合薄膜与纯MoS_2薄膜在恶劣的南海海洋大气环境暴露储存6个月后的薄膜成分、摩擦学性能的衍化行为.结果表明:与纯MoS_2薄膜相比,MoS_2/Pb-Ti纳米多层薄膜具有更好的抗湿热氧化性能,其摩擦学性能几乎未受到南海储存环境的影响,依然表现出较低的摩擦系数和磨损率.借助XRD、XPS、TEM和纳米压痕硬度等分析手段发现其摩擦学性能的大幅改善是由于薄膜中大量的异质界面对其晶面结构、薄膜致密性和机械性能的改善,以及Pb/Ti金属复合相对MoS_2氧化的抑制作用
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Last time updated on 07/01/2019