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The growth mechanism and stress relief patterns of nickel (Ni) films, deposited on silicone oil surfaces by a thermal evaporation method, have been studied systematically. Our experiment shows that the growth mechanism of the Ni films approximately obeys a two-stage growth model. Characteristic cracks with sinusoidal appearance resulted from the internal stress can be frequently observed in the continuous...
We report a sinusoid appearance of cracks existing in a continuous nickel (Ni) film system deposited on silicone oil surfaces. The sinusoid cracks start from the sample edges or from other cracks, then their oscillatory amplitudes decrease gradually as they extend and finally disappear. One crack may bifurcate into two or three cracks, or two cracks may coalesce harmoniously. The sinusoid appearance...
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