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Cross sections of epoxy adhesive joints (DGEBA and DETA) of Al or Cu PVD substrates were prepared by ultra-microtomy and studied with STEM, EELS and EDX to reveal the metal concentration profile after curing and after ageing in moist–warm air for 300 days. After curing, ca. 0.3at% of aluminium is detected in a thin interphase of less than 50nm thickness. Up to 0.5at% of copper is found within 20–75nm...
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