Fracture behavior of diamond-like carbon thin films by nanoindentation

机译：纳米压痕法模拟类金刚石碳薄膜的断裂行为

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Depth sensing nanoindentation measurement method was used for studying mechanical properties and fracture behavior of DLC layers deposited onto the steel substrate. Both pyramidal and spherical indenters were used to create interfacial and through thickness cracks under normal load and frictional force. Based on the analysis of the energy release in cracking and the critical load for crack generation, the ability of indentation response in detection of crack propagation and rupture strength was discussed. Fracture behavior of DLC films was compared to their hardness and elastic modulus. Attempts are focused on modeling the nanoindentation measurements in order to subtract the substrate effects from the measured data and evaluate the role of thickness on coating mechanical properties and failure.

机译：深度感应纳米压痕测量方法用于研究沉积在钢基材上的DLC层的力学性能和断裂行为。金字塔压头和球形压头均用于在法向载荷和摩擦力作用下产生界面裂纹和贯穿厚度的裂纹。在分析裂纹能量释放和裂纹产生的临界载荷的基础上，讨论了压痕响应检测裂纹扩展和断裂强度的能力。将DLC膜的断裂行为与其硬度和弹性模量进行比较。尝试集中于对纳米压痕测量进行建模，以便从测量的数据中减去基材的影响，并评估厚度对涂层机械性能和破坏的作用。

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来源
《2nd International EUSPEN Conference on Precision Engineering Nanotechnology Vol.1, May 27th-31st, 2001, Turin, Italy》|2001年|p.144-147|共4页
会议地点 Turin(IT)
作者
D. Bethmont; A. Karimi;
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作者单位

Department of Physics, Swiss Federal Institute of Technology (EPFL) CH - 1015 Lausanne, Switzerland;

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原文格式 PDF
正文语种 eng
中图分类机械、仪表工业;
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Fracture behavior of diamond-like carbon thin films by nanoindentation

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