FIG. 1 Proposed mechanisms of joint lubrication (Redrawn after Walker and others, 1968) (Lancet, 1969; Dowson, Wright, and Longfield, 1969) and a further possibility, 'weeping' lubrication, has been proposed (McCutchen, 1959, 1962). More recently, the role ofelectrostatic forces at articulating surfaces has been investigated (Roberts, 1971). In each of these hypothetical mechanisms the thesis h...

To determine the lubrication oil consumption change of linear motion guide under some mileage, this study designs a test machine to fasten the linear motion guide. The grey prediction model GM(1,1) and neural network are employed for comparison and exploration. Through this study we can understand the differences in prediction of lubrication oil consumption between neural network and grey theor...

a r t i c l e i n f o Keywords: Lubricous oxides Hard coatings Lubricious oxides High temperature lubrication High temperature friction Temperature activated lubrication Multilayer coatings CrN/Mo 2 N In-situ lubrication Nanolayers Multilayered coatings Tool coatings Self lubrication Multi-layers Magnetron Sputtering Reactive sputtering CrN Mo 2 N CrN/Mo 2 N multilayers were deposited and TEM, ...

Measurements of normal and shear (frictional) forces between mica surfaces across small unilamellar vesicle (SUV) dispersions of the phosphatidylcholine (PC) lipids DMPC (14:0), DPPC (16:0) and DSPC (18:0) and POPC (16:0, 18:1), at physiologically high pressures, are reported. We have previously studied the normal and shear forces between two opposing surfaces bearing PC vesicles across pure wa...

In the pleural space, sliding between the lung and chest wall induces shear stress that could damage the delicate mesothelial cells covering the tissue surfaces. Normally, the pleural space, which is filled with fluid, is able to sustain continuous shear loading throughout its lifetime. To understand the mechanisms in preventing frictional damage on mesothelial tissue, we conducted experiments ...

Interacting surfaces are frequently found in mechanical systems and components. A lubricant is often added between the surfaces to separate them from mechanical contact in order to increase life and performance of the contacting surfaces. In this work various aspects of hydrodynamic lubrication are investigated theoretically. This is where interacting surfaces are completely separated by a flui...

BACKGROUND Silicone oil, as a major component in conditioner, is beneficial in the moisture preservation and lubrication of hair. However, it is difficult for silicone oil to directly absorb on the hair surface because of its hydrophobicity. Stable nanoemulsions containing silicone oil may present as a potential solution to this problem. METHODS Silicone oil nanoemulsions were prepared using ...

Abstract As the minimum feature size of integrated circuit elements has shrunk below 7 nm, chemical mechanical planarization (CMP) technology grown by leaps and bounds over past several decades. There been a growing interest in understanding fundamental science CMP, which continued to lag behind advances technology. This review paper provides comprehensive overview various phenomena such as con...

The formation of plate tectonics from mantle convection necessarily requires nonlinear rheological behavior. Recent studies suggest that self-lubricating rheological mechanisms are most capable of generating plate-like motion out of fluid flows. The basic paradigm of self-lubrication is nominally derived from the feedback between viscous heating and Ž temperature-dependent viscosity. Here, we p...