EVALUATION OF CHANGES IN THE UTILITY PROPERTIES OF A BASE MATERIAL AFTER THE APPLICATION OF THIN COATINGS OF WC/C, TIC/C AND A CARBON-BASED COATING: TA-C

1 KAVÁNOVÁ Anna
Co-authors:
1 BAKALOVA Totka 1 SVOBODOVÁ Lucie 2 JÍLEK Mojmír 1 KEJZLAR Pavel 1 LOUDA Petr
Institutions:
1 Department of Material Science, Faculty of Mechanical Engineering, Technical University of Liberec, Studentská 1402/2, 461 17 Liberec, Czech Republic, EU, e-mail: anna.kavanova@tul.cz, totka.bakalova@tul.cz, lucie.svobodova@tul.cz, pavel.kejzlar@tul.cz, petr.louda@tul.cz
2 SHM Šumperk, Průmyslová 3020/3, 787 01 Šumperk, Czech Republic, EU, e-mail: jilek@shm-cz.cz
Conference:
11th International Conference on Nanomaterials - Research & Application, Hotel Voronez I, Brno, Czech Republic, EU, October 16th - 18th 2019
Proceedings:
Proceedings 11th International Conference on Nanomaterials - Research & Application
Pages:
244-250
ISBN:
978-80-87294-95-6
ISSN:
2694-930X
Published:
1st April 2020
Proceedings of the conference have been sent to Web of Science and Scopus for evaluation and potential indexing.
Metrics:
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Abstract

Tribological coatings are mainly used to reduce adhesive wear, which often leads to the seizure or the formation of cold welds. The low coefficient of friction and good sliding properties make it ideal for applications with low lubrication or even dry running. The result is an ideal way to reduce surface fatigue and tribo-oxidation. Tribological coatings have good sliding properties, a low coefficient of friction and low adhesive wear. Thin layers of WC/C and TiC/C of the MeC/a-C: H coating group were deposited onto the surface of ISO 683/11-70 steel. The third tribological coating deposited on the same substrate was a ta-C coating – a tetrahedral amorphous layer (stoichiometry: sp3 bonds > 50%). Tribological measurements were performed at a load of 10 N, a rotational speed of 60 rpm, and with a counterpart of ceramic material Al2O3.

Keywords: Nanocomposite coatings, surface morphology, mechanical properties, tribology and wear.
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