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SUMMARY:Scratching the surface: Measuring the wear and frictional response
  of surfaces - Mark Gee\, National Physical Laboratory
DTSTART:20110310T160000Z
DTEND:20110310T170000Z
UID:TALK28229@talks.cam.ac.uk
CONTACT:Stephen Walley
DESCRIPTION:Wear and friction are key attributes of materials that can mak
 e major differences to their application in industry and in everyday life.
  Wear causes major losses through premature failures and loss of function 
 that have been estimated to account for 2% of GDP. Friction needs to be th
 e correct value for a particular application\; as high as possible for foo
 twear and as low as possible to improve efficiency for bearings in interna
 l combustion engines. Reduction of wear and control of friction are theref
 ore key to ensuring that the best possible performance can be achieved fro
 m materials.\nThis talk will illustrate how the measurements at NPL have c
 ontributed to an understanding of how materials behave in tribological (we
 ar and friction) applications. After a brief introduction describing wear 
 and friction\, the talk will focus on the development of techniques that p
 rovide a deeper understanding of the mechanisms that occur in the wear of 
 materials\, and on the effect of test parameters such as the test environm
 ent including humidity and machine dynamics. Results will also be presente
 d on the development of methods to investigate the wear behaviour of WC/Co
  tool materials.\n
LOCATION:Mott Seminar Room\, Cavendish Laboratory\, Department of Physics
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