A novel approach to tribological measurements at harsh conditions

E.R. Weltevreden, Emile van der Heide

    Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

    Abstract

    When dealing with high-tech equipment, accurate positioning is of the utmost importance to ensure durability and a productive lifetime. Unexpected high friction or wear of positioning mechanisms can lead to unnecessary down-time or products that are not up to specification. To ensure a sufficient lifetime, it is necessary to know beforehand how the sliding and rolling contacts will behave over time. This demand becomes more stringent when the machine operates at extreme conditions, e.g. vacuum or extremely low temperatures. Traditional greases and mineral oil based lubricants do not perform adequately in such extreme environments, as they either contaminate the vacuum or do not provide sufficient film thickness. TNO recently developed a unique measuring application, the TNO cryotribometer, in order to measure friction and wear of position mechanisms at harsh conditions. Preliminary results show that the contact pressure and the sliding velocity influenced the friction level greatly. This set-up is currently used to find and analyze different material combinations, which demonstrate a constant friction level under cryogenic vacuum conditions.
    Original languageEnglish
    Title of host publicationCryogenic Optical Systems and Instruments XIII
    Editors James B. Heaney, E. Todd Kvamme
    Place of PublicationBellingham, WA
    PublisherSPIE
    Number of pages9
    ISBN (Print)9780819487605
    DOIs
    Publication statusPublished - 2011
    EventSPIE Optical Engineering + Applications 2011 - San Diego Marriott Marquis and Marina, San Diego Convention Center, San Diego, United States
    Duration: 16 Aug 201125 Aug 2011

    Publication series

    NameProceedings of SPIE
    PublisherSPIE
    Volume8150
    ISSN (Print)0277-786X

    Conference

    ConferenceSPIE Optical Engineering + Applications 2011
    CountryUnited States
    CitySan Diego
    Period16/08/1125/08/11

    Keywords

    • METIS-284051

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