| Autor: |
Kanders, Uldis, Lungevics, Janis, Leitans, Armands, Boiko, Irina, Berzins, Karlis, Trubina, Zane |
| Zdroj: |
Diffusion and Defect Data Part B: Solid State Phenomena; June 2021, Vol. 320 Issue: 1 p37-42, 6p |
| Abstrakt: |
Nanostructured smart coatings (NSC) based on the TiAlSi-CN composite structure elements were deposited using advanced reactive physical vapor deposition (PVD) method. The novel NSC on steel substrates demonstrated enhanced wear and corrosion resistance required for multifunctional high-tech applications. The deposited NSC containing TiAlSi-CN nanoparticles strengthened by Cr, Nb and Hf additives exhibited a coefficient of friction (CoF) less than 0.2 and wear rate as low as 10E-8 mm3/Nm. In addition, some self-healing properties were observed preventing denitrification of the core carbon-nitride (CN) layer due to specific tribochemical reactions of Al and Si constituents. Thus, the chemical composition and tentative nano-structure of the NSC can be described by a stoichiometric formula TiAlSi-CN:Me/a-CxNy:Si3N4, where Me=Cr, Nb or Hf. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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