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SUMMARY:Understanding and Developing Inorganic Lubricant Additives - Profe
 ssor Paul O'Brien\, University of Manchester
DTSTART:20141016T103000Z
DTEND:20141016T113000Z
UID:TALK54621@talks.cam.ac.uk
CONTACT:Catherine Pearson
DESCRIPTION:Inorganic lubricant additives such as zinc dialkyldithiophosph
 ates (ZDDPs) and molybdenum dithiocarbamates are used ubiquitously in auto
 motive engines. They decompose under tribological and thermal stress to co
 at engine components with anti wear films based on either polyphosphate gl
 ass or layered structures such as molybdenum disulfide that protect the co
 mponents and thus increase their working lifetime. However\, little is kno
 wn about their mechanism of deposition and only by understanding this can 
 we attempt to produce new anti wear materials.  In this talk\, we will exp
 lore the fundamental aspects of deposition of  molybdenum disulfide onto s
 teel substrates Using molybdenum disulfide films deposited by aerosol-assi
 sted chemical vapour deposition (AACVD) as a model.  We then show how this
  can be translated to chemical bath deposition to coat various relevant su
 bstrates such as steel\, aluminium and diamond like carbon (DLC).  We also
  explore the failure of molybdenum disulfide directly by the use of a nove
 l electron microscopy-Tribology technique.   Finally\, we look to the futu
 re\, developing a materials sorting map methodology to identify new anti w
 ear materials.  The case of chromium-doped molybdenum disulfide is explore
 d.
LOCATION:Open Plan Area\, BP Institute\, Madingley Rise CB3 0EZ
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