3001 Experiments for Simple Measurements of Lubricant High-Pressure Viscosity up to 2GPa
Details
Nakamura et. al. had enabled simple measurements of lubricant high-pressure viscosity up to 0.8GPa using a diamond-anvil pressure cell (DAC) by establishing a pressure calibration diagram with a loading screw angle of the DAC. In the present study, the applicability of this method up to 2GPa was investigated by measuring high-pressure viscosity for several alcohols and an ester oil whose viscosity data was reported by Bridgman up to 3GPa. A pressure calibration diagram was constructed, which was proved to be independent of liquids with confirming reproducibility. Employing this pressure calibration diagram, high-pressure viscosities were obtained for some alcohols and they were consistent with Bridgman data up to 2GPa with some data scatters.
