|کد مقاله||کد نشریه||سال انتشار||مقاله انگلیسی||ترجمه فارسی||نسخه تمام متن|
|5443121||1510858||2018||4 صفحه PDF||سفارش دهید||دانلود کنید|
This study demonstrates two-stage cracking of an Inconelâsilver film system on a flexible Teflon substrate under uniaxial tension. In situ fragmentation experiments revealed that primary fracture of the brittle 30Â nm Inconel overcoat induced brittle, secondary fracture of the normally ductile 150Â nm silver base layer. Good correlation exists between the ratios of primary and secondary saturation crack spacing and individual layer thicknesses. Two-stage cracking was confirmed by cross-sectional analysis and explained by different steady state energy release rates of the individual layers. The results further illustrate how brittle layers are detrimental to the mechanical behaviour of polymer-supported thin film multilayer structures.
Journal: Scripta Materialia - Volume 145, 1 March 2018, Pages 5-8