Tribological behavior of dual-layer electroless-plated Ag-carbon nanotube coatings

Hyun Dai Lee, Oleksiy V. Penkov, Dae Eun Kim

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

The tribological behavior of electroless Ag-plated carbon nanotube (CNT) dual-layer coatings was assessed and compared to that of the pure CNT coating. The motivation was to protect the surface of CNT coatings from wear by depositing a thin, soft Ag coating. The methods used for coating CNTs and Ag were spin coating and electroless plating, respectively. These coating methods were selected based on their simplicity and cost effectiveness. Wear tests were conducted by sliding the coatings against a stainless steel ball under a 10-30 mN applied load. Results showed that the wear rate of the dual-layer coating was strongly dependent on the thickness of the Ag layer as well as the applied load. At a 10 mN load and an Ag thickness of 65 nm, the wear rate of the dual-layer coating was about 10 times less than that of the pure CNT coating. However, when the thickness of the Ag was decreased to 11.5 nm, the wear rate was significantly higher. Also, the steady-state friction coefficients of the CNT and the dual-layer Ag-CNT coatings were in the range of 0.65-0.73 for all loads. A model of the wear reduction mechanism of the dual-layer Ag-CNT coating was proposed.

Original languageEnglish
Pages (from-to)410-416
Number of pages7
JournalThin Solid Films
Volume534
DOIs
Publication statusPublished - 2013 May 1

Fingerprint

Carbon Nanotubes
Carbon nanotubes
carbon nanotubes
coatings
Coatings
Wear of materials
coating
cost effectiveness
wear tests
Electroless plating
Stainless Steel
Spin coating
plating
Cost effectiveness
coefficient of friction
sliding
balls
stainless steels
Stainless steel

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

Cite this

@article{293cbacee16442a481804e9cf71cd585,
title = "Tribological behavior of dual-layer electroless-plated Ag-carbon nanotube coatings",
abstract = "The tribological behavior of electroless Ag-plated carbon nanotube (CNT) dual-layer coatings was assessed and compared to that of the pure CNT coating. The motivation was to protect the surface of CNT coatings from wear by depositing a thin, soft Ag coating. The methods used for coating CNTs and Ag were spin coating and electroless plating, respectively. These coating methods were selected based on their simplicity and cost effectiveness. Wear tests were conducted by sliding the coatings against a stainless steel ball under a 10-30 mN applied load. Results showed that the wear rate of the dual-layer coating was strongly dependent on the thickness of the Ag layer as well as the applied load. At a 10 mN load and an Ag thickness of 65 nm, the wear rate of the dual-layer coating was about 10 times less than that of the pure CNT coating. However, when the thickness of the Ag was decreased to 11.5 nm, the wear rate was significantly higher. Also, the steady-state friction coefficients of the CNT and the dual-layer Ag-CNT coatings were in the range of 0.65-0.73 for all loads. A model of the wear reduction mechanism of the dual-layer Ag-CNT coating was proposed.",
author = "Lee, {Hyun Dai} and Penkov, {Oleksiy V.} and Kim, {Dae Eun}",
year = "2013",
month = "5",
day = "1",
doi = "10.1016/j.tsf.2013.02.005",
language = "English",
volume = "534",
pages = "410--416",
journal = "Thin Solid Films",
issn = "0040-6090",
publisher = "Elsevier",

}

Tribological behavior of dual-layer electroless-plated Ag-carbon nanotube coatings. / Lee, Hyun Dai; Penkov, Oleksiy V.; Kim, Dae Eun.

In: Thin Solid Films, Vol. 534, 01.05.2013, p. 410-416.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Tribological behavior of dual-layer electroless-plated Ag-carbon nanotube coatings

AU - Lee, Hyun Dai

AU - Penkov, Oleksiy V.

AU - Kim, Dae Eun

PY - 2013/5/1

Y1 - 2013/5/1

N2 - The tribological behavior of electroless Ag-plated carbon nanotube (CNT) dual-layer coatings was assessed and compared to that of the pure CNT coating. The motivation was to protect the surface of CNT coatings from wear by depositing a thin, soft Ag coating. The methods used for coating CNTs and Ag were spin coating and electroless plating, respectively. These coating methods were selected based on their simplicity and cost effectiveness. Wear tests were conducted by sliding the coatings against a stainless steel ball under a 10-30 mN applied load. Results showed that the wear rate of the dual-layer coating was strongly dependent on the thickness of the Ag layer as well as the applied load. At a 10 mN load and an Ag thickness of 65 nm, the wear rate of the dual-layer coating was about 10 times less than that of the pure CNT coating. However, when the thickness of the Ag was decreased to 11.5 nm, the wear rate was significantly higher. Also, the steady-state friction coefficients of the CNT and the dual-layer Ag-CNT coatings were in the range of 0.65-0.73 for all loads. A model of the wear reduction mechanism of the dual-layer Ag-CNT coating was proposed.

AB - The tribological behavior of electroless Ag-plated carbon nanotube (CNT) dual-layer coatings was assessed and compared to that of the pure CNT coating. The motivation was to protect the surface of CNT coatings from wear by depositing a thin, soft Ag coating. The methods used for coating CNTs and Ag were spin coating and electroless plating, respectively. These coating methods were selected based on their simplicity and cost effectiveness. Wear tests were conducted by sliding the coatings against a stainless steel ball under a 10-30 mN applied load. Results showed that the wear rate of the dual-layer coating was strongly dependent on the thickness of the Ag layer as well as the applied load. At a 10 mN load and an Ag thickness of 65 nm, the wear rate of the dual-layer coating was about 10 times less than that of the pure CNT coating. However, when the thickness of the Ag was decreased to 11.5 nm, the wear rate was significantly higher. Also, the steady-state friction coefficients of the CNT and the dual-layer Ag-CNT coatings were in the range of 0.65-0.73 for all loads. A model of the wear reduction mechanism of the dual-layer Ag-CNT coating was proposed.

UR - http://www.scopus.com/inward/record.url?scp=84876677838&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84876677838&partnerID=8YFLogxK

U2 - 10.1016/j.tsf.2013.02.005

DO - 10.1016/j.tsf.2013.02.005

M3 - Article

AN - SCOPUS:84876677838

VL - 534

SP - 410

EP - 416

JO - Thin Solid Films

JF - Thin Solid Films

SN - 0040-6090

ER -