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首页> 外文期刊>Journal of Applied Polymer Science >Multiple cracking of rigid platinum film covering polymer substrate
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Multiple cracking of rigid platinum film covering polymer substrate

机译：刚性铂膜覆盖聚合物基材的多次开裂

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摘要

Multiple cracking of a thin platinum film deposited on polyethylene terephthalate, isoprene rubber, and natural rubber substrates under tensile deformation was studied by light and scanning electron microscopy. The cover fractures on several fragments elongated in the direction perpendicular to the loading direction. The width of the fractured platinum fragments depends on the thickness of the deposited layer and applied tensile stress. A semiempirical equation describing the average width of the cover fragments was obtained. Appearance of a wavy pattern on an originally smooth surface of composites with rubberlike polymer substrate was observed. The mechanism of the appearance of the surface wave is a mechanical buckling instability of the cover under compressive force.
机译：通过光学和扫描电子显微镜研究了拉伸变形下沉积在聚对苯二甲酸乙二醇酯，异戊二烯橡胶和天然橡胶基材上的铂薄膜的多次开裂。覆盖层在沿垂直于加载方向的方向延伸的几个碎片上破裂。断裂的铂碎片的宽度取决于沉积层的厚度和所施加的拉应力。获得了描述盖片平均宽度的半经验方程。观察到在具有橡胶状聚合物基底的复合材料的本来光滑的表面上出现了波浪状图案。表面波出现的机理是盖在压缩力下的机械屈曲不稳定性。

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