Influence of Ni dopping on structure and mechanical properties of nc-TiC/a- C:H coatings

DANIEL, Josef, Pavel SOUČEK, Vilma BURŠÍKOVÁ, Ondřej CAHA, Monika STUPAVSKÁ, Lukáš ZÁBRANSKÝ and Petr VAŠINA. Influence of Ni dopping on structure and mechanical properties of nc-TiC/a- C:H coatings. In EMRS 2014 Spring Meeting. 2014.

Basic information

• Original name: Influence of Ni dopping on structure and mechanical properties of nc-TiC/a- C:H coatings
• Authors: DANIEL, Josef (203 Czech Republic, belonging to the institution), Pavel SOUČEK (203 Czech Republic, belonging to the institution), Vilma BURŠÍKOVÁ (203 Czech Republic, belonging to the institution), Ondřej CAHA (203 Czech Republic, belonging to the institution), Monika STUPAVSKÁ (703 Slovakia, belonging to the institution), Lukáš ZÁBRANSKÝ (203 Czech Republic, belonging to the institution) and Petr VAŠINA (203 Czech Republic, guarantor, belonging to the institution).
• Edition: EMRS 2014 Spring Meeting, 2014.

Other information

• Original language: English
• Type of outcome: Conference abstract
• Field of Study: 10305 Fluids and plasma physics
• Country of publisher: France
• Confidentiality degree: is not subject to a state or trade secret
• WWW: URL
• RIV identification code: RIV/00216224:14310/14:00073765
• Organization unit: Faculty of Science
• Keywords in English: nickel; titanium carbide; magnetron sputtering; nanocomposite; thin films
• Tags: International impact

Abstract

Nanocrystalline titanium carbide embedded in an amorphous (hydrogenated) carbon matrix is a versatile nanocomposite material which, being deposited as thin film, combines the properties of hard titanium carbide nanocrystallites and relatively soft hydrogenized carbon matrix. Hybrid PVD-PECVD process of titanium sputtering in a mixture of argon and acetylene at optimized deposition conditions enables us to deposit superhard nc-TiC/a-C:H coating with hardness and Young’s modulus over 40 GPa and 400 GPa, respectively with good adhesion on Ti coated HSS and WC and thickness higher than 5 µm. Further mprovement of the mechanical properties of these coatings was tested by adding third, non carbide formig, element by placing small number of nickel evaporation pellets on the racetrack of the magnetron target. Set of samples with different Ti/C ratio was prepared for different Ni doses. Influence of the Ni content on the properties of nc-TiC/a-C:H system was evaluated. XRD was used to determine crystalite size and latice parameter; depth sensing indenter to get hardness and Young modulus. XPS and EDX provided chemical composition of prepared samples. This research has been supported by the CZ.1.05/2.1.00/03.0086 and GACR P205/12/0407 projects.

Links

• ED2.1.00/03.0086, research and development project: Name: Regionální VaV centrum pro nízkonákladové plazmové a nanotechnologické povrchové úpravy
• GAP205/12/0407, research and development project: Name: Porozumění hybridnímu PVD-PECVD procesu s cílem řídit růst nanostrukturovaných kompozitních vrstev

Investor: Czech Science Foundation