Please use this identifier to cite or link to this item: https://hdl.handle.net/10316/100509
Title: Exploring the industrial implementation of W–S–N coatings: a detailed study of the synthesis, compositional, structural, mechanical and multi-environment lubrication properties
Authors: Yaqub, Talha Bin 
Al-Rjoub, Abbas M.K. 
Cavaleiro, Albano 
Fernandes, Filipe Daniel 
Keywords: W–S–N coatings; Industrial solid lubricant coatings; Low friction; Diverse environment tribology; Transition metal dichalcogenides
Issue Date: 2022
Project: MARTLUB ref. “POCI-01-0145-FEDER-031807” 
ON-SURF ref. “POCI-01-0247-FEDER-024521 
Atrito-0 ref POCI-01-0145-FEDER-030446 
UIDB/00285/2020 
LA/P/0112/2020 
Serial title, monograph or event: Journal of Materials Research and Technology
Volume: 18
Abstract: The work presents a detailed analysis of the synthesis, compositional, morphological, structural, mechanical and diverse atmosphere sliding characteristics of reactive sputtered W–S–N coatings. The aim is to perform an organized study to explore the sliding performance in three different environments (room temperature, 200 °C and dry N2) and disseminate the results to promote the application of TMD-N coatings for actual industrial implementation. All coatings are sub-stoichiometric in sulphur with respect to WS2 phase. The coatings show highly compact morphologies, as compared to the literature results. The pure WSx coating has (100) preferential orientation. However, the N-alloyed ones display strong (002) preferential orientation which is usually linked to a high sliding efficiency. The pure and W/S/N coatings exhibit a maximum hardness values of 3.7 GPa and 8.0 GPa, respectively. The minimum friction coefficient and wear rates observed for W–S–N coatings in room temperature, 200 °C and dry N2 are 0.09 vs. 7.2 × 10−8 mm3/Nm, 0.02 vs. 7.1 × 10−8 mm3/Nm and 0.03 vs. 9.3 × 10−9 mm3/Nm, respectively. On the other hand, the sliding properties at room temperature are comparable to the literature for both TMD-N and TMD-C coatings.
URI: https://hdl.handle.net/10316/100509
ISSN: 22387854
DOI: 10.1016/j.jmrt.2022.02.116
Rights: openAccess
Appears in Collections:I&D CEMMPRE - Artigos em Revistas Internacionais

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