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Film formation of yogurt under confined condition
Author(s) -
Ma Liran,
Luo Jianbin,
Zhang Chenhui,
Ma Zhizuo,
Wang Yan,
Dai Yuanjing
Publication year - 2012
Publication title -
surface and interface analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.52
H-Index - 90
eISSN - 1096-9918
pISSN - 0142-2421
DOI - 10.1002/sia.3832
Subject(s) - lubrication , materials science , adhesion , interferometry , composite material , thin film , lubrication theory , fluid bearing , optics , nanotechnology , physics
The yogurt film confined within a nanogap was investigated by the thin film interferometry between two solid surfaces. Significantly thick film was found even under a low speed, which indicated yogurt might have excellent lubrication performance. The film thickness was much higher than the prediction of elastohydrodynamic lubrication theory. Experiment results indicated that the thick confined film of yogurt can be induced by the adhesion of organic material, which can sustain high pressure without being extruded under low speed. The effect of the rolling speed on film thickness shows that the lubrication under a high rolling speed tends to be the elastohydrodynamic lubrication. Copyright © 2011 John Wiley & Sons, Ltd.