Plastic Deformations of Micro-Spheres by Solidified Lubricants and Lubricants’ Shear Characteristics under Very High Pressure (Part 1)-Observation of Plastically-Deformed Micro-Spheres-
HOGLUND, E. Experimental Investigation of the Shear Strength of Lubricants Subjected to High Pressure and Temperature. Trans. ASME, J. Lub. Tech. 1986, 108, 571