skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Investigation of Nano-Mechanical and- Tribological Properties of Hydrogenated Diamond Like Carbon (DLC) Coatings

Abstract

Abstract Hydrogenated diamond like Carbon (H-DLC) is a promising lubricious coating that attracted a great deal of interest in recent years mainly because of its outstanding tribological properties. In this study, the nano-mechanical and -tribological properties of a range of H-DLC films were investigated. Specifically, four kinds of H-DLC coatings were produced on Si substrates in pure acetylene, pure methane, 25% methane + 75% hydrogen, 50% methane + 50% hydrogen discharge plasmas using a plasma enhanced chemical vapour deposition (PECVD) system. Nano indentation was performed to measure the mechanical properties such as hardness and young's modulus and nanoscartching was performed to investigate the frictional behavior and wear mechanism of the H-DLC samples in open air. Moreover, Vickers indentation method was utilized to assess the fracture toughness of the samples. The results revealed that there is a strong correlation between the mechanical properties (hardness, young's modulus, fracture toughness) and the friction coefficient of DLC coatings and the source gas chemistry. Lower hydrogen to carbon ratio in source gas leads to higher hardness, young's modulus, fracture toughness and lower friction coefficient. Furthermore, lower wear volume of the coated materials was observed when the friction coefficient was lower. It was also confirmed thatmore » lower hydrogen content of the DLC coating leads to higher wear resistance under nanoscratch conditions.« less

Authors:
; ; ; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE) - Office of Vehicle Technology
OSTI Identifier:
1484028
DOE Contract Number:  
AC02-06CH11357
Resource Type:
Journal Article
Journal Name:
Journal of Mechanics
Additional Journal Information:
Journal Volume: 33; Journal Issue: 06; Journal ID: ISSN 1727-7191
Country of Publication:
United States
Language:
English
Subject:
Fracture toughness; Hardness; Hydrogenated DLC coating; Wear

Citation Formats

Jeng, Y. -R., Islam, S., Wu, K-T., Erdemir, A., and Eryilmaz, O. Investigation of Nano-Mechanical and- Tribological Properties of Hydrogenated Diamond Like Carbon (DLC) Coatings. United States: N. p., 2016. Web. doi:10.1017/jmech.2016.106.
Jeng, Y. -R., Islam, S., Wu, K-T., Erdemir, A., & Eryilmaz, O. Investigation of Nano-Mechanical and- Tribological Properties of Hydrogenated Diamond Like Carbon (DLC) Coatings. United States. doi:10.1017/jmech.2016.106.
Jeng, Y. -R., Islam, S., Wu, K-T., Erdemir, A., and Eryilmaz, O. Fri . "Investigation of Nano-Mechanical and- Tribological Properties of Hydrogenated Diamond Like Carbon (DLC) Coatings". United States. doi:10.1017/jmech.2016.106.
@article{osti_1484028,
title = {Investigation of Nano-Mechanical and- Tribological Properties of Hydrogenated Diamond Like Carbon (DLC) Coatings},
author = {Jeng, Y. -R. and Islam, S. and Wu, K-T. and Erdemir, A. and Eryilmaz, O.},
abstractNote = {Abstract Hydrogenated diamond like Carbon (H-DLC) is a promising lubricious coating that attracted a great deal of interest in recent years mainly because of its outstanding tribological properties. In this study, the nano-mechanical and -tribological properties of a range of H-DLC films were investigated. Specifically, four kinds of H-DLC coatings were produced on Si substrates in pure acetylene, pure methane, 25% methane + 75% hydrogen, 50% methane + 50% hydrogen discharge plasmas using a plasma enhanced chemical vapour deposition (PECVD) system. Nano indentation was performed to measure the mechanical properties such as hardness and young's modulus and nanoscartching was performed to investigate the frictional behavior and wear mechanism of the H-DLC samples in open air. Moreover, Vickers indentation method was utilized to assess the fracture toughness of the samples. The results revealed that there is a strong correlation between the mechanical properties (hardness, young's modulus, fracture toughness) and the friction coefficient of DLC coatings and the source gas chemistry. Lower hydrogen to carbon ratio in source gas leads to higher hardness, young's modulus, fracture toughness and lower friction coefficient. Furthermore, lower wear volume of the coated materials was observed when the friction coefficient was lower. It was also confirmed that lower hydrogen content of the DLC coating leads to higher wear resistance under nanoscratch conditions.},
doi = {10.1017/jmech.2016.106},
journal = {Journal of Mechanics},
issn = {1727-7191},
number = 06,
volume = 33,
place = {United States},
year = {2016},
month = {10}
}

Works referenced in this record:

Tribological characteristics of DLC films and duplex plasma nitriding/DLC coating treatments
journal, July 1995


Palmqvist indentation toughness in WC-Co composites
journal, August 1987

  • Laugier, M. T.
  • Journal of Materials Science Letters, Vol. 6, Issue 8
  • DOI: 10.1007/BF01729862

Amorphous carbon
journal, January 1986


Effect of source gas chemistry on tribological performance of diamond-like carbon films
journal, April 2000


Fracture mechanisms of thin amorphous carbon films in nanoindentation
journal, November 1997


Sliding wear characteristics of the diamond-like carbon films on alloy substrates
journal, September 2007


Synthesis and Tribology of Micro-Carbon Sphere Additives for Enhanced Lubrication
journal, February 2015


Diamond and Amorphous Carbon MEMS
journal, April 2001

  • Sullivan, J. P.; Friedmann, T. A.; Hjort, K.
  • MRS Bulletin, Vol. 26, Issue 4
  • DOI: 10.1557/mrs2001.68

Investigation of deformation behaviour and abrasive wear mechanism in nanomachining
journal, January 2011

  • Islam, Sumaiya; Ibrahim, Raafat
  • International Journal of Surface Science and Engineering, Vol. 5, Issue 1
  • DOI: 10.1504/IJSURFSE.2011.039989

Friction and wear properties of smooth diamond films grown in fullerene + argon plasmas
journal, July 1996


The mechanics of single crystal Cu machining at nanoscale
journal, January 2011


Characterization of diamond films by Raman spectroscopy
journal, April 1989

  • Knight, Diane S.; White, William B.
  • Journal of Materials Research, Vol. 4, Issue 2
  • DOI: 10.1557/JMR.1989.0385

Insights into “near-frictionless carbon films”
journal, June 2004

  • Johnson, Jacqueline A.; Woodford, John B.; Chen, Xidong
  • Journal of Applied Physics, Vol. 95, Issue 12
  • DOI: 10.1063/1.1739287

Diamond-like carbon: state of the art
journal, March 1999


Mechanism of Abrasive Wear in Nanomachining
journal, March 2011


Measurement of fracture toughness of ultra-thin amorphous carbon films
journal, March 1998


Mechanical and tribological properties of hard carbon coatings for magnetic recording heads
journal, November 1995


Environmental effects on the friction of hydrogenated DLC films
journal, January 2006


Lubrication of DLC Coatings with Two Tris(pentafluoroethyl)trifluorophosphate Anion-Based Ionic Liquids
journal, July 2013


Synthesis of diamondlike carbon films with superlow friction and wear properties
journal, July 2000

  • Erdemir, A.; Eryilmaz, O. L.; Fenske, G.
  • Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films, Vol. 18, Issue 4
  • DOI: 10.1116/1.582459

Characterization of diamondlike carbon films and their application as overcoats on thin‐film media for magnetic recording
journal, November 1987

  • Tsai, Hsiao‐chu; Bogy, D. B.
  • Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films, Vol. 5, Issue 6
  • DOI: 10.1116/1.574188

Characterization of chemical bonding and physical characteristics of diamond-like amorphous carbon and diamond films
journal, February 1992

  • Bhushan, Bharat; Kellock, Andrew J.; Cho, Nam-Hee
  • Journal of Materials Research, Vol. 7, Issue 2
  • DOI: 10.1557/JMR.1992.0404

Effect of feed gas composition effects on the nanotribological properties of diamond-like carbon films
journal, February 2013


Mechanical Properties of Carbon Films for Thin Film Disks
journal, January 1990

  • White, Richard L.; Doerner, Mary F.; Walker, George W.
  • MRS Proceedings, Vol. 188
  • DOI: 10.1557/PROC-188-213