Tribological Properties of Solid Lubricant Thin Films in Space Environment.

architecture and engineering of nanoscale sculptured thin films and determination of their properties

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Tribological Behavior of Very Thin Confined Films

The tribological properties of two smooth surfaces in the presence of a thin confined film are investigated with a generic model for the interaction between two surfaces and with computer simulations. It is shown that at large normal contact pressures, an ultra thin film automatically leads to static friction between two flat surfaces-even if the surfaces are incommensurate. Commen-surability i...

Design and investigation of TiO2 –SiO2 thin films on AISI 316L stainless steel for tribological properties and corrosion protection

The TiO2–SiO2 thin films were deposited on AISI 316L stainless steel via sol-gel method. Then, the effect of the added amount of SiO2 on the structure, morphology and mechanical properties of the films and corrosion behavior of AISI 316L stainless steel substrate were investigated. So, X-ray diffraction, field-emission scanning electron microscopy, atomic force microscopy, depth-sensing indenta...

Mechanical properties of solid bulk materials and thin films

Viscosity Measurement in Thin Lubricant Films Using Shear Ultrasonic Reflection

When a shear ultrasonic wave is incident on a solid and liquid boundary, the proportion that is reflected depends on the liquid viscosity. This is the basis for some instruments for on-line measurement of bulk liquid viscosity. In machine elements, the lubricant is usually present in a thin layer between two rubbing solid surfaces. The thin film has a different response to an ultrasonic shear w...