Superior surface protection governed by optimized interface characteristics in WC/DLC multilayer coating

Narguess Nemati; Oleksiy V. Penkov; Dae Eun Kim

doi:10.1016/j.surfcoat.2020.125446

Superior surface protection governed by optimized interface characteristics in WC/DLC multilayer coating

Narguess Nemati, Oleksiy V. Penkov, Dae Eun Kim

Department of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

10 Citations (Scopus)

Abstract

This paper introduces a highly durable functional multilayer coating (FMCs) with outstanding mechanical properties using comprehensive design principles. Architecting the layers with degrees of freedom in structure and thickness is the core idea to design WC/DLC FMC. This concept seeks to combine advantages of superior properties of single-layer metal, ceramic, and carbon coatings, without compromising with weaknesses. This research creates a pioneering integration platform that combines the current understanding of materials properties across scale and optimization of interfacial characteristics of ultra-thin films through the combination of theoretical and experimental studies. The aim of this study is to introduce a significant improvement for multilayer sustainability of properties and mechanical strength such as ultra-high hardness (>45 GPa) combined with high elasticity (H/E ~0.15), creep deformation recovery and ultra-durability in macro-scale wear (wear rate <10⁻¹³) of WC/DLC multi-nanolayer. “Interface engineering” through the methodology of coating-by-design and concept-based heat treatment creates the gradient structural characteristics, which is called hierarchical multilayer coating (FMC) surface protection concept in this study.

Original language	English
Article number	125446
Journal	Surface and Coatings Technology
Volume	385
DOIs	https://doi.org/10.1016/j.surfcoat.2020.125446
Publication status	Published - 2020 Mar 15

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No. 2019R1H1A2039657 ) and Brain Korea 21 plus Project in 2018 and 2019. The authors would like to thank the University of Tehran for the lab facilities used during this research work.

Funding Information:
This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No. 2019R1H1A2039657) and Brain Korea 21 plus Project in 2018 and 2019. The authors would like to thank the University of Tehran for the lab facilities used during this research work. The raw/processed data required to reproduce these findings cannot be shared at this time as the data also forms part of an ongoing study.

Publisher Copyright:
© 2020 Elsevier B.V.

All Science Journal Classification (ASJC) codes

Chemistry(all)
Condensed Matter Physics
Surfaces and Interfaces
Surfaces, Coatings and Films
Materials Chemistry

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10.1016/j.surfcoat.2020.125446

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title = "Superior surface protection governed by optimized interface characteristics in WC/DLC multilayer coating",

abstract = "This paper introduces a highly durable functional multilayer coating (FMCs) with outstanding mechanical properties using comprehensive design principles. Architecting the layers with degrees of freedom in structure and thickness is the core idea to design WC/DLC FMC. This concept seeks to combine advantages of superior properties of single-layer metal, ceramic, and carbon coatings, without compromising with weaknesses. This research creates a pioneering integration platform that combines the current understanding of materials properties across scale and optimization of interfacial characteristics of ultra-thin films through the combination of theoretical and experimental studies. The aim of this study is to introduce a significant improvement for multilayer sustainability of properties and mechanical strength such as ultra-high hardness (>45 GPa) combined with high elasticity (H/E ~0.15), creep deformation recovery and ultra-durability in macro-scale wear (wear rate <10−13) of WC/DLC multi-nanolayer. “Interface engineering” through the methodology of coating-by-design and concept-based heat treatment creates the gradient structural characteristics, which is called hierarchical multilayer coating (FMC) surface protection concept in this study.",

author = "Narguess Nemati and Penkov, {Oleksiy V.} and Kim, {Dae Eun}",

note = "Funding Information: This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No. 2019R1H1A2039657 ) and Brain Korea 21 plus Project in 2018 and 2019. The authors would like to thank the University of Tehran for the lab facilities used during this research work. Funding Information: This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No. 2019R1H1A2039657) and Brain Korea 21 plus Project in 2018 and 2019. The authors would like to thank the University of Tehran for the lab facilities used during this research work. The raw/processed data required to reproduce these findings cannot be shared at this time as the data also forms part of an ongoing study. Publisher Copyright: {\textcopyright} 2020 Elsevier B.V.",

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PY - 2020/3/15

Y1 - 2020/3/15

N2 - This paper introduces a highly durable functional multilayer coating (FMCs) with outstanding mechanical properties using comprehensive design principles. Architecting the layers with degrees of freedom in structure and thickness is the core idea to design WC/DLC FMC. This concept seeks to combine advantages of superior properties of single-layer metal, ceramic, and carbon coatings, without compromising with weaknesses. This research creates a pioneering integration platform that combines the current understanding of materials properties across scale and optimization of interfacial characteristics of ultra-thin films through the combination of theoretical and experimental studies. The aim of this study is to introduce a significant improvement for multilayer sustainability of properties and mechanical strength such as ultra-high hardness (>45 GPa) combined with high elasticity (H/E ~0.15), creep deformation recovery and ultra-durability in macro-scale wear (wear rate <10−13) of WC/DLC multi-nanolayer. “Interface engineering” through the methodology of coating-by-design and concept-based heat treatment creates the gradient structural characteristics, which is called hierarchical multilayer coating (FMC) surface protection concept in this study.

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Superior surface protection governed by optimized interface characteristics in WC/DLC multilayer coating

Abstract

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All Science Journal Classification (ASJC) codes

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