@article{oai:iwate-u.repo.nii.ac.jp:00010166,
 author = {星, 靖 and 南, 一郎 and 森, 誠之},
 issue = {11},
 journal = {トライボロジスト},
 month = {Nov},
 note = {Water-glycol hydraulic fluids tend to show significantly shorter life of the rolling bearings in hydraulic systems than conventional mineral oil based fluids. Various explanations about it are given, however the cause is not known well yet. This paper describes measurement of the elastohydrodynamic film of the water glycol hydraulic fluid by the observation method with a micro FT-lR. lt is found that the concentration of water and glycol changed at the inlet of the EHL contact region. The concentration change was influenced by the molecular weight or polyglycols，the slip ratio, and the composition of the fluids. Based on the concentration observed，the
viscosity at EHL region and lubricity have been discussed.},
 pages = {878--885},
 title = {水-グリコｰル系作動油のEHL接触域近傍における濃度変化－顕微FT-IRによる観察－},
 volume = {49},
 year = {2004}
}