Nanostructured TiAlSi-CN:Me/a-CN:Si3N4 Composite Coatings Deposited by Advanced PVD Technique
| Autor: | Karlis Berzins, Zane Trubina, Janis Lungevics, Armands Leitans, Irina Boiko, Uldis Kanders |
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| Rok vydání: | 2021 |
| Předmět: |
010302 applied physics
Materials science Composite number chemistry.chemical_element 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Atomic and Molecular Physics and Optics Hafnium chemistry 0103 physical sciences General Materials Science Composite material 0210 nano-technology |
| Zdroj: | Solid State Phenomena. 320:37-42 |
| ISSN: | 1662-9779 |
| DOI: | 10.4028/www.scientific.net/ssp.320.37 |
| Popis: | 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: | OpenAIRE |
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