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- W4319977368 abstract "Abstract A method is described for depositing very thin lubricating-oil films of any specified thickness of the order of 10−7 in. on polished metal in connection with experiments on boundary friction. The oil to be deposited is converted into a highly dispersed fog consisting largely of positively charged particles. The oil is readily deposited on a negatively charged metal surface at a rate depending on the nature of the oil, the potential gradient at the metal surface, and the concentration of the oil particles in the fog. The rate of deposition is best determined by observation of the progressive change in the interference color produced over a thickness range between 5 × 10−6 cm and 30 × 10−6 cm. Comparison of color with a standard stepped film of barium stearate laid down by the Langmuir and Blodgett technique gives a high degree of accuracy to the determination of film thickness. Experiments have been made on the wearability of very thin oil films, and on the determination of the coefficient of static friction. An instrument is described which has been found especially suitable for this work. The author points out that a low value of the coefficient of static friction is a measure of the oiliness value of an oil-metal combination." @default.
- W4319977368 created "2023-02-11" @default.
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- W4319977368 date "1939-05-01" @default.
- W4319977368 modified "2023-09-25" @default.
- W4319977368 title "Thin Oil Films" @default.
- W4319977368 doi "https://doi.org/10.1115/1.4021086" @default.
- W4319977368 hasPublicationYear "1939" @default.
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