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Depth profile analyses of nc-TiC/a-C:H coating prepared by balanced magnetron sputtering

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VAŠINA Petr SOUČEK Pavel SCHMIDTOVÁ Tereza ELIÁŠ Marek BURŠÍKOVÁ Vilma JÍLEK Mojmír JÍLEK Mojmír Jr. SCHÄFER Jan BURŠÍK Jiří

Rok publikování 2011
Druh Článek v odborném periodiku
Časopis / Zdroj Surface & Coatings Technology
Fakulta / Pracoviště MU

Přírodovědecká fakulta

Citace
Obor Fyzika plazmatu a výboje v plynech
Klíčová slova Composite; Mechanical properties; Magnetron; Carbon; Titanium
Popis Nanocrystalline titanium carbide embedded in an hydrogenated amorphous carbon matrix (nc-TiC/a-C:H) shows high hardness and Young's modulus together with low wear and low friction coefficient. In this paper, we report on the preparation of well adherent nc-TiC/a-C:H coatings ~5 um thick on stainless steel substrates using a well balanced magnetic field configuration and only very low power RF bias on the substrate. Hardness and Young's modulus of these coatings are 43 GPa and 380 GPa, respectively. The mechanical properties – hardness and Young's modulus – measured from the coating's top reach the values obtained at optimized experiments where the unbalanced magnetic field configuration was used. A simple method of depth profiling suitable for evaluation of mechanical properties of several micrometers thick coatings is developed and employed. The paper reports on the depth profile analyses of the coating hardness, Young's modulus, composition and morphology.
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