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Friction 2015, 3(4): 259-265 https://doi.org/10.1007/s40544-015-0091-5
Research Article | Open Access | Issue | Published: 23 October 2015

Effect of temperature and atmosphere on the tribological behavior of a polyether ether ketone composite

Show Author's Information Felipe Darabas RZATKI1( ),  Diego Vinicius Dalevedo BARBOZA1,  Renan Muller SCHROEDER2,  Guilherme Mariz de Oliveira BARRA1,  Cristiano BINDER1,  Aloisio Nelmo KLEIN1,  José Daniel Biasoli DE MELLO1
 Federal University of Santa Catarina—UFSC, Mechanical Engineering Department, Materials Laboratory, Florianópolis, SC, Brazil
 Whirlpool/Embraco, Joinville, SC, Brazil
Keywords:
temperature, solid lubricant, environment, thermoplastics
Cite this article:
RZATKI FD, BARBOZA DVD, SCHROEDER RM, et al. Effect of temperature and atmosphere on the tribological behavior of a polyether ether ketone composite. Friction, 2015, 3(4): 259-265. https://doi.org/10.1007/s40544-015-0091-5
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Abstract Full text About this article

Polyether ether ketone (PEEK) is a high-performance thermoplastic, which is often selected for high-temperature tribological applications under chemically aggressive environments. The present work investigates the tribological behavior of a high-performance PEEK composite under conditions that are often found inside hermetic compressors. Therefore, an AMTI tribometer equipped with a hermetic chamber and a heating system was used to conduct sliding tests of PEEK cylinders on AISI 304 stainless steel polished discs (Sq <10 nm) with reciprocating movement and a normal force of 175 N. The tribological behavior of the PEEK/AISI 304 stainless steel system was investigated as a function of ambient temperature (30℃ and 80℃) and atmosphere (atmospheric air and tetrafluoroethane). Wear and surface roughness analyses were performed with white light interferometry and optical microscopy. Raman spectroscopy was used to investigate transfer films on the counter body surface. Temperature was observed to have a strong influence on the tribological behavior of the samples tested under atmospheric air, with a 25% decrease in the friction coefficient associated with a 100% increase in the wear rate. However, the friction measured from the samples tested under a tetrafluoroethane atmosphere showed no signif icant temperature dependence.


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About this article

Effect of temperature and atmosphere on the tribological behavior of a polyether ether ketone composite

Show Author's information Felipe Darabas RZATKI1( ), Diego Vinicius Dalevedo BARBOZA1, Renan Muller SCHROEDER2, Guilherme Mariz de Oliveira BARRA1, Cristiano BINDER1, Aloisio Nelmo KLEIN1, José Daniel Biasoli DE MELLO1
 Federal University of Santa Catarina—UFSC, Mechanical Engineering Department, Materials Laboratory, Florianópolis, SC, Brazil
 Whirlpool/Embraco, Joinville, SC, Brazil

Abstract

Polyether ether ketone (PEEK) is a high-performance thermoplastic, which is often selected for high-temperature tribological applications under chemically aggressive environments. The present work investigates the tribological behavior of a high-performance PEEK composite under conditions that are often found inside hermetic compressors. Therefore, an AMTI tribometer equipped with a hermetic chamber and a heating system was used to conduct sliding tests of PEEK cylinders on AISI 304 stainless steel polished discs (Sq <10 nm) with reciprocating movement and a normal force of 175 N. The tribological behavior of the PEEK/AISI 304 stainless steel system was investigated as a function of ambient temperature (30℃ and 80℃) and atmosphere (atmospheric air and tetrafluoroethane). Wear and surface roughness analyses were performed with white light interferometry and optical microscopy. Raman spectroscopy was used to investigate transfer films on the counter body surface. Temperature was observed to have a strong influence on the tribological behavior of the samples tested under atmospheric air, with a 25% decrease in the friction coefficient associated with a 100% increase in the wear rate. However, the friction measured from the samples tested under a tetrafluoroethane atmosphere showed no signif icant temperature dependence.

Keywords: temperature, solid lubricant, environment, thermoplastics

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Publication history
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Publication history

Received: 29 June 2015
Revised: 26 August 2015
Accepted: 17 September 2015
Published: 23 October 2015
Issue date: August 2021

Copyright

© The author(s) 2015

Acknowledgements

The authors wish to thank CNPq, FAPESC and Capes/ Proex for financial support.

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This article is published with open access at Springerlink.com

Open Access: This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.

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