Variation with Temperature of Surface Tension of Lubricating Oils
Abstract
Surface-tension measurements from room temperature to 180 deg C of a series of aeronautical lubricating oils and a few liquids of associated interest are reported. The measurements were obtained from a Du Nouy tensiometer and corrected according to the theory of Harkins and Jordan. The critical temperatures of the liquids are calculated and thus a general classification of existing oils into three groups is provided. The effect of use or exposure to high temperatures is to leave the relation between surface tension and temperature virtually unchanged, unless the use has been excessively prolonged, when decomposition begins and the surface tension is lowered.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1950
- Accession Number
- ADA801538
Entities
People
- Sydney Ross
Organizations
- Stanford University