Aging time correlation in DC magnetron sputtered Ni60Ti40 thin films

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• 作者：B. Naveen Kumar Reddy ; ^{bussireddynaveen@gmail.com} ; N.K. Udayashankar
• 关键词：Intermetallic NiTi thin films ; DC magnetron sputtering ; Aging ; Surface roughness ; Nanoindentation ; X-ray photoelectron spectroscopy
• 刊名：Vacuum
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：135
• 期：Complete
• 页码：124-134
• 全文大小：2584 K
• 卷排序：135

文摘

The effect of aging time on intermetallic thin films has been investigated. Larger precipitated particles cause more incoherence in the Ni-rich matrix. Hardness and young's modulus increase with increase in the density of precipitates. The high thermodynamic reactivity of Ti forms TiO2 layer onto the film surface. TiO2 cause Ni-rich matrix trapped behind the film surface along with TiC precipitates.