采用摩擦力和声发射两种模式同时监测的划痕法研究了Au/NiCr/Ta和Au/NiCr多层金属薄膜的临界载荷Lc,并与TiN硬质薄膜进行了对比.实验结果表明:摩擦力和声发射模式均能反映出压头进入不同金属膜层时的变化,在单一金属薄膜层中两者均无大的变化.对应实验范围内不同的沉积温度,拐点特征载荷值基本不受其影响,而主要取决于多层膜的层厚和层数.
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