ISSN:0265-6582    

DOI:10.1002/jsl.3000020202

出版商:John Wiley&Sons, Ltd    

年代:1985

数据来源: WILEY

摘要:

AbstractThe four ball wear test apparatus was used to study the antiwear properties of four organo‐phosphate additives in dimethyl‐, phenyl methyl‐, and two chlorophenyl methyl siloxane fluids as a function of load, additive concentration and viscosity. In most cases an antagonistic ‘prowear’ effect is observed refuting the commonly held belief that the lack of antiwear activity is the result of the additive not getting to the surface or being displaced from the surface by polysiloxa

ISSN:0265-6582    

DOI:10.1002/jsl.3000020203

出版商:John Wiley&Sons, Ltd    

年代:1985

数据来源: WILEY

摘要:

AbstractThis paper examines the relationship between air retention (both by air entrainment and foaming) and lubricant characteristics. Laboratory research found that foaming is related to temperature; it may also be affected by other factors such as impurities. Data is presented on foaming properties and air separation for both mineral and synthetic oils. Foaming is also examined in relation to viscosity.

ISSN:0265-6582    

DOI:10.1002/jsl.3000020204

出版商:John Wiley&Sons, Ltd    

年代:1985

数据来源: WILEY

摘要:

AbstractIn order to establish correlations between the chemical structure or constitution of fluid lubricants and their friction characteristics under elastohydro dynamic conditions, a number of model test fluids were tested in a twin‐disk machine. As test fluids, special saturated mono‐, bi‐, and tricyclic compounds, alkanes and polyethers were selected. The traction coefficients were shown to be strongly dependent on the chemical structure of the lubricants and on operational parameters. High coefficient values mostly arise from lubricant molecules that are shaped unregularly, with indentations and teeth as seen with Stuart‐Briegleb models, and allowing only heavily hampered rotational intramolecular motions along single bond axes. Low traction coefficients derive from lubricant molecules with a thread‐like shape and a minimum of structural subunits or functional groups involved in significant intermolecular interactions. In order to account for the results obtained, several paradigms and hypotheses are established and discussed

ISSN:0265-6582    

DOI:10.1002/jsl.3000020205

出版商:John Wiley&Sons, Ltd    

年代:1985

数据来源: WILEY

ISSN:0265-6582    

DOI:10.1002/jsl.3000020206

出版商:John Wiley&Sons, Ltd    

年代:1985

数据来源: WILEY

ISSN:0265-6582    

DOI:10.1002/jsl.3000020207

出版商:John Wiley&Sons, Ltd    

年代:1985

数据来源: WILEY

ISSN:0265-6582    

DOI:10.1002/jsl.3000020201

出版商:John Wiley&Sons, Ltd    

年代:1985

数据来源: WILEY