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To this point, the field of lubrication has been conceptualized using several noncontiguous modes of operation - boundary, fluid-film, and dry and solid lubrication. Engineers and analysts have long had to deal with old evidence that many tribological devices, such as flat surface and centrally pivoted sliders, can act as viable bearings - contradicting basic hydrodynamic theory. Tribology of Interface Layers introduces a new concept wherein disparate modes are shown to actually be particular phases of a tribological continuum spanning a wide array of material lubricants. The...

To this point, the field of lubrication has been conceptualized using several noncontiguous modes of operation boundary, fluid-film, and dry and solid lubrication. Engineers and analysts have long had to deal with old evidence that many tribological devices, such as flat surface and centrally pivoted sliders, can act as viable bearings contradicting basic hydrodynamic theory.

Tribology of Interface Layers introduces a new concept wherein disparate modes are shown to actually be particular phases of a tribological continuum spanning a wide array of material...

Continuous flow, mechanical cardiac assist devices rely on a rotating impeller to aid the heart with blood flow. Like any other mechanical system, the rotating components of these devices require some form of load support that is provided by either mechanical or magnetic bearings. The goal of this article is to provide an overview of basic principles that are important for design and evaluation of mechanical bearings used in blood pumps with a primary focus on mechanical bearings used in the second and third generation ventricular assist devices (VADs). A general introduction of some basic...