Frictional properties of ceramics, MoS2 coated films and polyethylene fibre reinforced plastics at 4.2 K in liquid helium
✍ Scribed by A. Iwabuchi; H. Arai; Y. Yoshino; T. Shimizu; M. Sugimoto; K. Yoshida; T. Kashima; H. Inui
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 648 KB
- Volume
- 35
- Category
- Article
- ISSN
- 0011-2275
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✦ Synopsis
Frictional problems in superconducting magnets are related to the stability and reliability of the magnets, because frictional heating causes quench of the magnet and the frictional resistance determines the limit of the shear force at the contacting surfaces. To find those materials possessing low friction, the frictional properties of ceramics of ZrO, and Si3N4, three different kinds of MoS, coated films and polyethylene fibre reinforced plastics (DFRPs) were examined at 4 K in liquid helium under reciprocating sliding conditions. The two ceramics showed similar tendencies in terms of friction. The organically bonded MoS, film exhibited the lowest coefficient of friction of 0.06, while the coefficient of friction of DFRP was lower than that of glass fibre reinforced epoxy (GFRP).