Publication detail

Experimental study of space lubricant evaporation in a high vacuum environment

POUZAR, J. KOŠŤÁL, D. ŠPERKA, P. KŘUPKA, I. HARTL, M.

English title

Experimental study of space lubricant evaporation in a high vacuum environment

Type

WoS Article

Language

en

Original abstract

The liquid lubricant evaporation in space applications poses significant challenges, raising the risk of inaccurate estimation of lubricant implementation and the potential contamination of satellite subsystems. The study of vacuum evaporation becomes highly relevant with the increasing use of liquid lubricants in satellite constellations. This research presents a novel methodology for assessing the lubricant evaporation rate, focusing on establishing a correlation between existing analytical models and experimental measurements. The obtained experimental results clearly demonstrate a disparity between the existing analytical models and the measured evaporated mass of vacuum base oils. Importantly, these results indicate higher evaporation rates predicted by the analytical approach. This emphasises the importance of refining the analytical models to accurately predict the amount of liquid lubricant evaporated.

Keywords in English

Space tribology; Vacuum evaporation; Multiply-alkylated cyclopentane; Perfluoropolyether

Released

2023-11-02

Publisher

PERGAMON-ELSEVIER SCIENCE LTD

Location

OXFORD

ISSN

0042-207X

Journal

Vacuum

Volume

219

Number

A

Pages from–to

1–7

Pages count

7

BIBTEX


@article{BUT185804,
  author="Josef {Pouzar} and David {Košťál} and Petr {Šperka} and Ivan {Křupka} and Martin {Hartl}",
  title="Experimental study of space lubricant evaporation in a high vacuum environment",
  journal="Vacuum",
  year="2023",
  volume="219",
  number="A",
  pages="1--7",
  doi="10.1016/j.vacuum.2023.112758",
  issn="0042-207X",
  url="https://www.sciencedirect.com/science/article/pii/S0042207X23009557"
}