Development of a novel lateral force-sensing microindentation technique for determination of interfacial bond strength
Development of a novel lateral force-sensing microindentation technique for determination of interfacial bond strength
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DOI：
10.1016/j.actamat.2003.12.047
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发表时间：
2004-04
期刊：
影响因子：
9.4
通讯作者：
Hua Zhang;Q. Chen;Dongyang Li
中科院分区：
文献类型：
--
作者：
Hua Zhang;Q. Chen;Dongyang Li
界面结合强度是决定复合材料、薄膜和涂层最终力学性能和性能的关键因素。人们一直在努力开发有效的界面粘结强度测定技术。然而，现有的方法都不是“理想的”，使用这些技术获得的结果通常是定性的。本文提出了一种测定复合材料和涂层界面结合强度的新方法。在测试过程中，显微压痕进行界面附近的原位监测横向力的变化。结果表明，侧向力（Fx）对界面脱粘非常敏感。对应于界面脱粘的临界压痕载荷可用于定量确定界面结合强度。该方法是合理的，使用实验和计算方法。以Al_2 O_3/Al合金界面结合为例进行了分析。
The interfacial bond strength is a crucial factor determining ultimate mechanical properties and performances of composites, thin films and coatings. Great efforts have been made to develop effective techniques for determination of interfacial bond strength. However, none of existing methods is “ideal” and results obtained using these techniques are generally qualitative. In this paper, a new technique is proposed to determine the interfacial bond strength for composites and coatings. During the test, microindentation was performed near an interface with in situ monitoring changes in lateral force. It was demonstrated that the lateral force (Fx) was very sensitive to interfacial debond. The critical indentation load that corresponds to interfacial debond can be used to quantitatively determine the interfacial bond strength. The method was justified using experimental and computational approaches. As an example, an Al2O3/Al alloy interfacial bond was analyzed.