A novel approach to tribological measurements at harsh conditions

Esther R. Weltevreden; Emile van der Heide

doi:10.1117/12.893069

28 September 2011 A novel approach to tribological measurements at harsh conditions

Esther R. Weltevreden, Emile van der Heide

Proceedings Volume 8150, Cryogenic Optical Systems and Instruments XIII; 815003 (2011) https://doi.org/10.1117/12.893069
Event: SPIE Optical Engineering + Applications, 2011, San Diego, California, United States

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.

Citation Download Citation

Esther R. Weltevreden and Emile van der Heide "A novel approach to tribological measurements at harsh conditions", Proc. SPIE 8150, Cryogenic Optical Systems and Instruments XIII, 815003 (28 September 2011); https://doi.org/10.1117/12.893069

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available