Thin film delamination can occur when the stored elastic energy per unit area in the film due to the residual stress exceeds the interfacial toughness. Telephone cord morphology is commonly observed in delaminating thin films under compressive stresses. Here, the biaxial film stress is partially relieved by film buckling in the direction perpendicular to the telephone cord propagation, and by "...

The friction of diamond and diamond-like carbon (DLC) materials was evaluated in reciprocating sliding wear testing under controlled relative humidity. The testing conditions were a displacement stroke of 100 mm, an oscillatory frequency of 8Hz and a normal load of 2N. The coefficient of friction of diamond and hydrogen-free DLC (a-C) coatings against a corundum sphere in the steady regime decr...

The paper describes a new approach for the in-process integration of sensors into lightweight metal components made of aluminium and fabricated by casting. It examines the suitability of DiaForce thin film sensors based on piezoresistive hydrocarbon layers (DLC) for integration in molten aluminium. In contrast to previous research, a technology is introduced which will allow real-time measureme...

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