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We present results on nanoindentation and scratch testing on magnetic recording tape heads coated with sub-20nm amorphous carbon layers, prepared by filtered cathodic deposition and plasma enhanced chemical vapour deposition. The hardness values of the coated devices are higher than that of the sputtered Al 2 O 3 substrate. The coatings do not reduce friction but improve the scratch...
In conventional pin-on-disk testing of the tribological characteristics of two different materials in sliding contact, the main parameters of interest are notably the friction and wear properties of the material pair. However, when two bodies consisting of hard and soft materials, respectively, are subjected to such testing, the appearance of a transfer film, or third body, which can be a composite...
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