Proceedings of the Korean Society of Tribologists and Lubrication Engineers Conference (한국윤활학회:학술대회논문집)
- 2003.11a
- /
- Pages.215-223
- /
- 2003
Shear Thinning Effects by VII Added Lubricant with In-Situ Optical Viscometer
Abstract
Viscosity index improver (VII) is one of the major additives to the modern multigrade lubricants for the viscosity stability against temperature rise. However, it causes shear thinning effects which make the film thickness lessened very delicately at high shear rate
Keywords
- elastohydrodynamic lubrication (EHL);
- in-situ EHL optical interferometer (optical viscometer);
- viscosity index improver;
- shear thinning;
- multigrade lubricant