a 2014

Study of the adhesion of nc-TiC/a-C:H coatings on plasma-treated steel substrates

ZÁBRANSKÝ, Lukáš; Vilma BURŠÍKOVÁ; Josef DANIEL; Petr VAŠINA; Pavel SOUČEK et al.

Základní údaje

Originální název

Study of the adhesion of nc-TiC/a-C:H coatings on plasma-treated steel substrates

Autoři

ZÁBRANSKÝ, Lukáš; Vilma BURŠÍKOVÁ; Josef DANIEL; Petr VAŠINA; Pavel SOUČEK; Jiří BURŠÍK; Jan GROSSMAN; Jaroslav SOBOTA a Mojmír JÍLEK

Vydání

Fourteenth International Conference on Plasma Surface Engineering, 2014

Další údaje

Jazyk

angličtina

Typ výsledku

Konferenční abstrakt

Obor

10305 Fluids and plasma physics

Stát vydavatele

Německo

Utajení

není předmětem státního či obchodního tajemství

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14310/14:00074184

Organizační jednotka

Přírodovědecká fakulta

Klíčová slova anglicky

adhesion; interlayer; indentation

Příznaky

Mezinárodní význam
Změněno: 12. 12. 2014 14:46, doc. Mgr. Jaroslav Hnilica, Ph.D.

Anotace

V originále

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. The adhesion of nc-TiC/a-C(:H) films to industrially attractive substrates is often poor, therefore an adhesion promoting interlayer is routinely introduced to overcome this problem. The aim of the recent work is to study the adhesion of nc-TiC/a-C:H coatings to high speed steel substrates. The coatings were deposited by the hybrid PVD-PECVD process using the unbalanced configuration of the magnetic field. The substrates were treated by several methods including chemical, mechanical and plasma techniques. The influence of the cleaning time and bias voltage on the substrate holder on the resulting adhesion was studied. In addition titanium interlayers with various thicknesses were deposited on the substrates prior to the coating deposition in order to study its adhesion as a function of the interlayer thickness. The dynamic impact, Rockwell, scratch and indentation tests were used to study the effect of the above listed surface processing techniques on the resistance of the coating/interlayer/substrate system against mechanical damage. The indentation induced defects were studied using Fisherscope H100 and Hysitron TI950 nanoindentation equipments. The resistance of the interface against fracture was studied by comparison of the number of cracks around and/or below the residual indentation imprints. Details of microstructure in the vicinity of the indentation print were studied using transmission electron microscopes JEOL 2100F and Philips CM12 STEM and scanning electron microscope MIRA 3 FEG-SEM.

Návaznosti

ED2.1.00/03.0086, projekt VaV
Název: Regionální VaV centrum pro nízkonákladové plazmové a nanotechnologické povrchové úpravy
GAP205/12/0407, projekt VaV
Název: Porozumění hybridnímu PVD-PECVD procesu s cílem řídit růst nanostrukturovaných kompozitních vrstev
Investor: Grantová agentura ČR, Porozumění hybridnímu PVD-PECVD procesu s cílem řídit růst nanostrukturovaných kompozitních vrstev