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Fragmentation testing for ductile thin films on polymer substrates

机译:聚合物基材上延展性薄膜的碎裂测试

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摘要

Fragmentation testing of thin films on substrates has in the past been mostly performed in situ using optical and scanning electron microscopy. While these techniques work well for brittle materials, they cannot always discern the difference between through-thickness cracks (TTCs) and localized plastic deformation of ductile films. Here, we describe fragmentation testing with atomic force microscopy and present criterion to distinguish TTCs and localized deformation for ductile films.
机译:过去,基板上薄膜的碎裂测试大部分是使用光学和扫描电子显微镜原位进行的。尽管这些技术对于脆性材料非常有效,但它们不能始终分辨出穿透厚度裂纹(TTC)与韧性薄膜的局部塑性变形之间的区别。在这里,我们描述了原子力显微镜的碎片测试,并提出了区分TTC和延展性薄膜局部变形的标准。

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