Artigo de periodico

Thick CrN/NbN Multilayer Coating Deposited by Cathodic Arc Technique (2017)

• Authors:
  • Araujo, Juliano Avelar
  • Souza, Roberto Martins de
  • Lima, Nelson Batista de
  • Tschiptschin, André Paulo
• USP affiliated authors: TSCHIPTSCHIN, ANDRE PAULO - EP ; SOUZA, ROBERTO MARTINS DE - EP
• Unidade: EP
• DOI: 10.1590/1980-5373-mr-2016-0293.
• Subjects: DIFRAÇÃO POR RAIOS X; MICROSCOPIA ELETRÔNICA; MATERIAIS NANOESTRUTURADOS
• Language: Inglês
• Abstract: The production of tribological nanoscale multilayer CrN/NbN coatings up to 6 μm thick by Sputtering/HIPIMS has been reported in literature. However, high demanding applications, such as internal combustion engine parts, need thicker coatings (>30 μm). The production of such parts by sputtering would be economically restrictive due to low deposition rates. In this work, nanoscale multilayer CrN/NbN coatings were produced in a high-deposition rate, industrial-size, Cathodic Arc Physical Vapor Deposition (ARC-PVD) chamber, containing three cathodes in alternate positions (Cr/ Nb/Cr). Four 30 μm thick NbN/CrN multilayer coatings with different periodicities (20, 10, 7.5 and 4 nm) were produced. The coatings were characterized by X-Ray Diffraction (XRD) and Transmission Electron Microscopy (TEM). The multilayer coating system was composed of alternate cubic rocksalt CrN and NbN layers, coherently strained due to lattice mismatch. The film grew with columnar morphology through the entire stratified structure. The periodicities adopted were maintained throughout the entire coating. The 20 nm periodicity coating showed separate NbN and CrN peaks in the XRD patterns, while for the lower periodicity (≤10nm) coatings, just one intermediate lattice (d-spacing) was detected. An almost linear increase of hardness with decreasing bilayer period indicates that interfacial effects can dominate the hardening mechanisms.
• Imprenta:
  • Publisher place: São Carlos
  • Date published: 2017
• Source:
  • Título: Materials Research
  • ISSN: 1980-5373
  • Volume/Número/Paginação/Ano: v. 20, n.1, p. 200-209, 2017

Informações sobre o DOI: 10.1590/1980-5373-mr-2016-0293. (Fonte: oaDOI API)
• Este periódico é de acesso aberto
• Este artigo é de acesso aberto
• URL de acesso aberto
• Cor do Acesso Aberto: gold
• Licença: cc-by

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• ABNT

  ARAUJO, Juliano Avelar et al. Thick CrN/NbN Multilayer Coating Deposited by Cathodic Arc Technique. Materials Research, v. 20, n. 1, p. 200-209, 2017Tradução . . Disponível em: https://doi.org/10.1590/1980-5373-mr-2016-0293. Acesso em: 05 nov. 2024.

• APA

  Araujo, J. A., Souza, R. M. de, Lima, N. B. de, & Tschiptschin, A. P. (2017). Thick CrN/NbN Multilayer Coating Deposited by Cathodic Arc Technique. Materials Research, 20( 1), 200-209. doi:10.1590/1980-5373-mr-2016-0293.

• NLM

  Araujo JA, Souza RM de, Lima NB de, Tschiptschin AP. Thick CrN/NbN Multilayer Coating Deposited by Cathodic Arc Technique [Internet]. Materials Research. 2017 ; 20( 1): 200-209.[citado 2024 nov. 05 ] Available from: https://doi.org/10.1590/1980-5373-mr-2016-0293.

• Vancouver

  Araujo JA, Souza RM de, Lima NB de, Tschiptschin AP. Thick CrN/NbN Multilayer Coating Deposited by Cathodic Arc Technique [Internet]. Materials Research. 2017 ; 20( 1): 200-209.[citado 2024 nov. 05 ] Available from: https://doi.org/10.1590/1980-5373-mr-2016-0293.

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