Publication detail

DLC-Coated Thermoplastics: Tribological Analyses Under Dry and Lubricated Sliding Conditions

BOBZIN, K. KALSCHEUER, C. THIEX, M. ŠPERKA, P. HARTL, M. REITSCHUSTER, S. MAIER, E. LOHNER, T. STAHL, K.

English title

DLC-Coated Thermoplastics: Tribological Analyses Under Dry and Lubricated Sliding Conditions

Type

journal article in Web of Science

Language

en

Original abstract

The purpose of this study was to increase the limited wear resistance of polymers in highly stressed tribological contacts. Therefore, diamond-like carbon (DLC) coatings were firstly developed and deposited on polymers. The development of the low temperature coating process was conducted on an industrial scale coating unit. Due to the use of polyether ether ether ketone (PEEK) and polyamide as substrate material, the coatings were tailored in accordance with different mechanical properties of the polymers. Furthermore, analyses regarding morphology, roughness as well as compound adhesion between coatings and polymers were conducted. The tribological analyses were accomplished for reciprocating sliding kinematics on pin-on-plate tribometer under dry conditions as well as boundary lubricated conditions. The results prove the ability of the coatings to undergo high plastic deformations without delamination. In addition, the possible formation of a composite layer of DLC and PEEK in the wear track due to high energy input under dry conditions was shown. Furthermore, the transformations of sp(2) chain into ring bindings as well as a change of size and distribution of the sp(2) clusters during dry contact conditions were observed.

English abstract

The purpose of this study was to increase the limited wear resistance of polymers in highly stressed tribological contacts. Therefore, diamond-like carbon (DLC) coatings were firstly developed and deposited on polymers. The development of the low temperature coating process was conducted on an industrial scale coating unit. Due to the use of polyether ether ether ketone (PEEK) and polyamide as substrate material, the coatings were tailored in accordance with different mechanical properties of the polymers. Furthermore, analyses regarding morphology, roughness as well as compound adhesion between coatings and polymers were conducted. The tribological analyses were accomplished for reciprocating sliding kinematics on pin-on-plate tribometer under dry conditions as well as boundary lubricated conditions. The results prove the ability of the coatings to undergo high plastic deformations without delamination. In addition, the possible formation of a composite layer of DLC and PEEK in the wear track due to high energy input under dry conditions was shown. Furthermore, the transformations of sp(2) chain into ring bindings as well as a change of size and distribution of the sp(2) clusters during dry contact conditions were observed.

Keywords in English

DLC; PEEK; PA66; Raman spectroscopy; Wear; Polymers

Released

28.02.2023

Publisher

Springer Nature

Location

NEW YORK

ISSN

1023-8883

Volume

71

Number

1

Pages count

15

BIBTEX


@article{BUT182795,
  author="Kirsten {Bobzin} and Christian {Kalscheuer} and Matthias {Thiex} and Petr {Šperka} and Martin {Hartl} and Stefan {Reitschuster} and Enzo {Maier} and Thomas {Lohner} and Karsten {Stahl},
  title="DLC-Coated Thermoplastics: Tribological Analyses Under Dry and Lubricated Sliding Conditions",
  year="2023",
  volume="71",
  number="1",
  month="February",
  publisher="Springer Nature",
  address="NEW YORK",
  issn="1023-8883"
}