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采用多靶磁控共溅射技术,利用高纯度Al,Mg和B单质靶材为溅射源,室温下在单晶Si(100)表面上成功制备了低摩擦系数的非晶态Al-Mg-B硬质薄膜.通过改变Al/Mg混合靶体积配比及靶材溅射功率来调控薄膜成分,最终制备的Al-Mg-B薄膜成分接近AlMgB14相的元素成分比,其Vickers硬度约为32 GPa.XRD及HR-TEM分析表明,制备的薄膜均为非晶态.XPS测试表明薄膜内部存在B-B及Al-B单键;FTIR进一步测试表明,在波数1100 cm-1处出现较为明显的振动吸收峰,证明制备的薄膜中含有B12二十面体结构,这也是薄膜具有超硬性的主要原因.薄膜摩擦磨损测试表明薄膜雌擦系数在0.07左右.

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