Nano-indentation and tribological studies of ultrahigh strength carbon nitride thin films

Dong Li; Yip Wah Chung

doi:10.1080/10402009408983320

Nano-indentation and tribological studies of ultrahigh strength carbon nitride thin films

Dong Li, Yip Wah Chung

Materials Science and Engineering

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

17 Scopus citations

Abstract

Carbon nitride (CN_X) thin films were prepared by DC magnetron sputtering of a graphite target in a nitrogen ambient onto Si(100) and M2 steel substrates held at ambient temperatures. All CN_Xcoatings grown to a thickness of 1.5 are adherent and smooth. Nanoindentation studies showed that amorphous CN_Xthin films have hardness and effective Young’s modulus comparable to those of amorphous hard carbon. In dry sliding against 52100 steel, CN_X-coated M2 substrates give initial friction coefficients ˜0.1, rising to around 0.5 in the steady state. The wear life of coated M2 steels varies inversely with normal load, rising to about two orders of magnitude higher than that of uncoated M2 at a normal load of 1.3N and a sliding speed of 0.12 m/s. This improvement is attributed to the high yield strength of carbon nitride coatings.

Original language	English (US)
Pages (from-to)	479-482
Number of pages	4
Journal	Tribology Transactions
Volume	37
Issue number	3
DOIs	https://doi.org/10.1080/10402009408983320
State	Published - Jul 1994

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Surfaces and Interfaces
Surfaces, Coatings and Films

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title = "Nano-indentation and tribological studies of ultrahigh strength carbon nitride thin films",

abstract = "Carbon nitride (CNX) thin films were prepared by DC magnetron sputtering of a graphite target in a nitrogen ambient onto Si(100) and M2 steel substrates held at ambient temperatures. All CNXcoatings grown to a thickness of 1.5 are adherent and smooth. Nanoindentation studies showed that amorphous CNXthin films have hardness and effective Young{\textquoteright}s modulus comparable to those of amorphous hard carbon. In dry sliding against 52100 steel, CNX-coated M2 substrates give initial friction coefficients ˜0.1, rising to around 0.5 in the steady state. The wear life of coated M2 steels varies inversely with normal load, rising to about two orders of magnitude higher than that of uncoated M2 at a normal load of 1.3N and a sliding speed of 0.12 m/s. This improvement is attributed to the high yield strength of carbon nitride coatings.",

author = "Dong Li and Chung, {Yip Wah}",

note = "Funding Information: This research is supported by the National Science Foundation Surface Engineering and Tribology Program Grant Number MSS-9203239. The authors wish to thank Dr. M. E. Graham and Mr. X. L. Yang for their help in using the ~ ~ 1 ~ - 2 0 0 0 ' s y s taen1dn in coating deposition, respectively.",

year = "1994",

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language = "English (US)",

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T1 - Nano-indentation and tribological studies of ultrahigh strength carbon nitride thin films

AU - Li, Dong

AU - Chung, Yip Wah

N1 - Funding Information: This research is supported by the National Science Foundation Surface Engineering and Tribology Program Grant Number MSS-9203239. The authors wish to thank Dr. M. E. Graham and Mr. X. L. Yang for their help in using the ~ ~ 1 ~ - 2 0 0 0 ' s y s taen1dn in coating deposition, respectively.

PY - 1994/7

Y1 - 1994/7

N2 - Carbon nitride (CNX) thin films were prepared by DC magnetron sputtering of a graphite target in a nitrogen ambient onto Si(100) and M2 steel substrates held at ambient temperatures. All CNXcoatings grown to a thickness of 1.5 are adherent and smooth. Nanoindentation studies showed that amorphous CNXthin films have hardness and effective Young’s modulus comparable to those of amorphous hard carbon. In dry sliding against 52100 steel, CNX-coated M2 substrates give initial friction coefficients ˜0.1, rising to around 0.5 in the steady state. The wear life of coated M2 steels varies inversely with normal load, rising to about two orders of magnitude higher than that of uncoated M2 at a normal load of 1.3N and a sliding speed of 0.12 m/s. This improvement is attributed to the high yield strength of carbon nitride coatings.

AB - Carbon nitride (CNX) thin films were prepared by DC magnetron sputtering of a graphite target in a nitrogen ambient onto Si(100) and M2 steel substrates held at ambient temperatures. All CNXcoatings grown to a thickness of 1.5 are adherent and smooth. Nanoindentation studies showed that amorphous CNXthin films have hardness and effective Young’s modulus comparable to those of amorphous hard carbon. In dry sliding against 52100 steel, CNX-coated M2 substrates give initial friction coefficients ˜0.1, rising to around 0.5 in the steady state. The wear life of coated M2 steels varies inversely with normal load, rising to about two orders of magnitude higher than that of uncoated M2 at a normal load of 1.3N and a sliding speed of 0.12 m/s. This improvement is attributed to the high yield strength of carbon nitride coatings.

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Nano-indentation and tribological studies of ultrahigh strength carbon nitride thin films

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