Thermal Elastohydrodynamic Lubrication of Ceramic Materials

The effect of thermal conductivity on point elastohydrodynamic lubrication (EHL) contacts was discussed with representative engineering ceramics and steel by a non-Newtonian thermal EHL analysis. Through this investigation, fundamentals of EHL characteristics of contact surfaces composed of differen...

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Bibliographic Details
Published inTribology transactions Vol. 61; no. 5; pp. 869 - 879
Main Authors Kaneta, Motohiro, Sperka, Petr, Yang, Peiran, Krupka, Ivan, Yang, Ping, Hartl, Martin
Format Journal Article
LanguageEnglish
Published Taylor & Francis 03.09.2018
Subjects
Ceramics
slide-roll ratio
thermal conductivity
thermal elastohydrodynamic lubrication
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Summary:The effect of thermal conductivity on point elastohydrodynamic lubrication (EHL) contacts was discussed with representative engineering ceramics and steel by a non-Newtonian thermal EHL analysis. Through this investigation, fundamentals of EHL characteristics of contact surfaces composed of different thermal conductivities were generally revealed and a combination of optimum ceramic materials has been proposed. Furthermore, when the contacting materials are the same, it has been pointed out that the equivalent elastic modulus should be rather small and the thermal conductivity of the contact material should be high to obtain a thick overall film thickness and low film pressure.
ISSN:1040-2004
1547-397X
DOI:10.1080/10402004.2018.1437492