Tribological properties of carbon nanotube-polyethylene oxide composite coatings

Byung Hoon Ryu; Anthony J. Barthel; Hae Jin Kim; Hyun Dai Lee; Oleksiy V. Penkov; Seong H. Kim; Dae Eun Kim

doi:10.1016/j.compscitech.2014.07.007

Tribological properties of carbon nanotube-polyethylene oxide composite coatings

Byung Hoon Ryu, Anthony J. Barthel, Hae Jin Kim, Hyun Dai Lee, Oleksiy V. Penkov, Seong H. Kim, Dae Eun Kim

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

24 Scopus citations

Abstract

The effect of polyethylene oxide (PEO) inclusion in carbon nanotube (CNT) coating on the tribological properties of the composite coating was investigated. CNT/PEO composite coatings with 12 different weight fractions were fabricated by using the spin-coating method on pre-cleaned Si (1. 0. 0) substrates. Wear tests were performed using a reciprocating tribo-tester under an applied load of 10. mN and a speed of 4. mm/s. A 1.6. mm diameter stainless-steel ball was used as the pin and the corresponding Hertzian contact pressure was calculated to be ~20. kPa. From the experimental results, it was shown that the steady-state friction coefficients for the CNT/PEO coatings gradually decreased from ~0.47 to ~0.3 as the concentration of PEO increased from 0. wt.% to 75. wt.%. The wear volume of the CNT/PEO composite coating rapidly increased with increasing amount of PEO when the weight fraction of PEO was comparatively low. The wear volume reached the maximum value for 87/13. wt.% of CNT/PEO coating and showed a continuous decrease in the wear volume with further increase in the PEO weight fraction. Morphological analyses of the wear pattern revealed that wear mechanism of the composite coating varied with respect to PEO concentration. The overall experimental results demonstrated that the tribological properties of CNT-based coatings could be significantly improved by adding an optimum amount of PEO. The reason for such an improvement was attributed to the enhancement of interfacial forces within the composite coating due to the presence of PEO.

Original language	English (US)
Pages (from-to)	102-109
Number of pages	8
Journal	Composites Science and Technology
Volume	101
DOIs	https://doi.org/10.1016/j.compscitech.2014.07.007
State	Published - Sep 12 2014

All Science Journal Classification (ASJC) codes

Ceramics and Composites
Engineering(all)

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10.1016/j.compscitech.2014.07.007

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@article{211ea63671964a6fa5f9379504567985,

title = "Tribological properties of carbon nanotube-polyethylene oxide composite coatings",

abstract = "The effect of polyethylene oxide (PEO) inclusion in carbon nanotube (CNT) coating on the tribological properties of the composite coating was investigated. CNT/PEO composite coatings with 12 different weight fractions were fabricated by using the spin-coating method on pre-cleaned Si (1. 0. 0) substrates. Wear tests were performed using a reciprocating tribo-tester under an applied load of 10. mN and a speed of 4. mm/s. A 1.6. mm diameter stainless-steel ball was used as the pin and the corresponding Hertzian contact pressure was calculated to be ~20. kPa. From the experimental results, it was shown that the steady-state friction coefficients for the CNT/PEO coatings gradually decreased from ~0.47 to ~0.3 as the concentration of PEO increased from 0. wt.% to 75. wt.%. The wear volume of the CNT/PEO composite coating rapidly increased with increasing amount of PEO when the weight fraction of PEO was comparatively low. The wear volume reached the maximum value for 87/13. wt.% of CNT/PEO coating and showed a continuous decrease in the wear volume with further increase in the PEO weight fraction. Morphological analyses of the wear pattern revealed that wear mechanism of the composite coating varied with respect to PEO concentration. The overall experimental results demonstrated that the tribological properties of CNT-based coatings could be significantly improved by adding an optimum amount of PEO. The reason for such an improvement was attributed to the enhancement of interfacial forces within the composite coating due to the presence of PEO.",

author = "Ryu, {Byung Hoon} and Barthel, {Anthony J.} and Kim, {Hae Jin} and Lee, {Hyun Dai} and Penkov, {Oleksiy V.} and Kim, {Seong H.} and Kim, {Dae Eun}",

note = "Funding Information: AJB and SHK were supported by the National Science Foundation (Grant No. CMMI-1131128 ). AJB conducted experimental work at Yonsei University through the NSF EAPSI fellowship (Grant No. 1209737 ). BHR, HJK, HDL, OVP, and DEK were supported by the National Research Foundation of Korea ( NRF ) grant funded by the Korea government (MSIP) (No. 2010-0018289 ). ",

year = "2014",

month = sep,

day = "12",

doi = "10.1016/j.compscitech.2014.07.007",

language = "English (US)",

volume = "101",

pages = "102--109",

journal = "Composites Science and Technology",

issn = "0266-3538",

publisher = "Elsevier BV",

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TY - JOUR

T1 - Tribological properties of carbon nanotube-polyethylene oxide composite coatings

AU - Ryu, Byung Hoon

AU - Barthel, Anthony J.

AU - Kim, Hae Jin

AU - Lee, Hyun Dai

AU - Penkov, Oleksiy V.

AU - Kim, Seong H.

AU - Kim, Dae Eun

N1 - Funding Information: AJB and SHK were supported by the National Science Foundation (Grant No. CMMI-1131128 ). AJB conducted experimental work at Yonsei University through the NSF EAPSI fellowship (Grant No. 1209737 ). BHR, HJK, HDL, OVP, and DEK were supported by the National Research Foundation of Korea ( NRF ) grant funded by the Korea government (MSIP) (No. 2010-0018289 ).

PY - 2014/9/12

Y1 - 2014/9/12

N2 - The effect of polyethylene oxide (PEO) inclusion in carbon nanotube (CNT) coating on the tribological properties of the composite coating was investigated. CNT/PEO composite coatings with 12 different weight fractions were fabricated by using the spin-coating method on pre-cleaned Si (1. 0. 0) substrates. Wear tests were performed using a reciprocating tribo-tester under an applied load of 10. mN and a speed of 4. mm/s. A 1.6. mm diameter stainless-steel ball was used as the pin and the corresponding Hertzian contact pressure was calculated to be ~20. kPa. From the experimental results, it was shown that the steady-state friction coefficients for the CNT/PEO coatings gradually decreased from ~0.47 to ~0.3 as the concentration of PEO increased from 0. wt.% to 75. wt.%. The wear volume of the CNT/PEO composite coating rapidly increased with increasing amount of PEO when the weight fraction of PEO was comparatively low. The wear volume reached the maximum value for 87/13. wt.% of CNT/PEO coating and showed a continuous decrease in the wear volume with further increase in the PEO weight fraction. Morphological analyses of the wear pattern revealed that wear mechanism of the composite coating varied with respect to PEO concentration. The overall experimental results demonstrated that the tribological properties of CNT-based coatings could be significantly improved by adding an optimum amount of PEO. The reason for such an improvement was attributed to the enhancement of interfacial forces within the composite coating due to the presence of PEO.

AB - The effect of polyethylene oxide (PEO) inclusion in carbon nanotube (CNT) coating on the tribological properties of the composite coating was investigated. CNT/PEO composite coatings with 12 different weight fractions were fabricated by using the spin-coating method on pre-cleaned Si (1. 0. 0) substrates. Wear tests were performed using a reciprocating tribo-tester under an applied load of 10. mN and a speed of 4. mm/s. A 1.6. mm diameter stainless-steel ball was used as the pin and the corresponding Hertzian contact pressure was calculated to be ~20. kPa. From the experimental results, it was shown that the steady-state friction coefficients for the CNT/PEO coatings gradually decreased from ~0.47 to ~0.3 as the concentration of PEO increased from 0. wt.% to 75. wt.%. The wear volume of the CNT/PEO composite coating rapidly increased with increasing amount of PEO when the weight fraction of PEO was comparatively low. The wear volume reached the maximum value for 87/13. wt.% of CNT/PEO coating and showed a continuous decrease in the wear volume with further increase in the PEO weight fraction. Morphological analyses of the wear pattern revealed that wear mechanism of the composite coating varied with respect to PEO concentration. The overall experimental results demonstrated that the tribological properties of CNT-based coatings could be significantly improved by adding an optimum amount of PEO. The reason for such an improvement was attributed to the enhancement of interfacial forces within the composite coating due to the presence of PEO.

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U2 - 10.1016/j.compscitech.2014.07.007

DO - 10.1016/j.compscitech.2014.07.007

M3 - Article

AN - SCOPUS:84904876008

SN - 0266-3538

VL - 101

SP - 102

EP - 109

JO - Composites Science and Technology

JF - Composites Science and Technology

ER -

Tribological properties of carbon nanotube-polyethylene oxide composite coatings

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