... ), nanopowder lubrication ( Han et al., 2010 ), and elastohydrodynamic lubrications ( Brodsky and Kanamori, 2001 ). During rapid slip (> 0.1 m/s, depending on asperity size and weakening temperature), flash temperatures at highly stressed frictional microcontacts (asperities) can activate chemical reactions...

...David Walker Abstract Lubrication, gasketing, and pressure medium efects on pressure generation and reproducibility were investigated with 35 experiments on the Bi transitions in a multianvil apparatus. The system of integral gasket fins on octahedral pressure media and sliding, cylindrical anvil...

...RONALD L SHREVE Abstract Air-layer lubrication, that is, nearly frictionless support on a layer of trapped and compressed air, has been suggested for the Blackhawk-type landslides and for some nuées ardentes, snow avalanches, and cratering fallback. To ensure a sufficiently small rate of air loss...

...Fei Wang; Peizhang Gao; Jinsheng Liang; Baizeng Fang; Tingting Zhang; Huimin Liu Abstract Lubricants are an essential component in high-performance mechanical equipment, but traditional lubricants are becoming inadequate for meeting the increasing demands for anti-friction and anti-wear properties...

... slip rate and the steady-state frictional coefficient reduced to as low as 0.1 at a slip rate of 1.3 m s −1 . Flash heating is not effective for nanoparticles, and we propose that development of slickensides and dominant operation of nanoparticle rolling cause such a weakening. Nanoparticle lubrication...

... lubricating oil. After the addition of 1 wt.% FeCl 3 , the removal rate of alkaline nitride increased from 33.6% to 43.3%. Furthermore, the acidity and chlorine content did not exceed acceptable levels. The testing methods of N 2 adsorption–desorption, particle-size distribution, Fourier-transform infrared...

...Haroldo Vizán; Claudia Beatriz Prezzi; Silvana Evangelina Geuna; María Silvia Japas; Emiliano Manuel Renda; Juan Franzese; María Andrea Van Zele Abstract The Gondwana megacontinent was composed of different domains separated by self-lubricated weak lithospheric zones, two of which could have...

... vertical movements of underlying essentially rigid blocks. This hypothesis is tested by study of experimental, faulted, drape folds in veneers of loose, dry, unconsolidated sand and in multilithologic layered sequences with lubricated interfaces produced under confining pressures to 200 MPa (2 kb) at 25 °C...

...Mark E. Conrad; Donald J. DePaolo Abstract Waste material buried in drums in the shallow subsurface at the Radioactive Waste Management Facility (RWMC) of the Idaho National Engineering and Environmental Laboratory (INEEL) contained significant amounts of organic compounds, including lubricating...

...) as a precursor of hydrocarbons produced at depth that were remobilized to the site of mineralization and acted as a reducing agent for uraninite precipitation; and (4) as a lubricant facilitating faulting and fluid flow that led to uranium mineralization. This paper uses the Phoenix uranium deposit...

... in some analog experiments. However, in other experiments, the analog material lies on top of a weak lubricating material or is sandwiched between two such materials. These layers lead to a viscous drag force acting on the analog material, resulting in imperfect simple-shear boundary conditions...

... suggested shifting of a subglacial water body. The water is trapped by a local reversal in ice-air surface slope arising from ice flow over variable basal topography and from the positive feedback of basal lubrication from the trapped water. Strong variations in the water content of the sediments upglacier...