The mechanical properties of natural joints are considered unrivalled. Cartilage is coated with a special polymer layer allowing joints to move virtually friction-free, even under high pressure. Using ...

Polymers can be cast at low pressures, rather than injection-molded, to produce engineering-grade components for downhole use. Like many other industry sectors, the upstream oil and gas industry has ...

The concepts of friction and wear are easy to understand, yet they can interrelate in complex ways within a tribological system (science concerned with interacting surfaces in relative motion ...

McLaren, K. G., Ph.D. Diss., Cambridge (March 1962). Pascoe, M. W., and Tabor, D., Proc. Roy. Soc., A, 235, 210 (1956).

In November 2008, the space shuttle Endeavor visited the International Space Station to do some important repair work. A critical part of the mission was to service the station’s two rotary joints, ...