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SUMMARY:Extending the Range of the Glassy State: Novel properties and appl
 ications exploiting non-crystallinity - Professor Lindsay Greer ( Departme
 nt of Materials Science and Metallurgy)
DTSTART:20160517T150000Z
DTEND:20160517T160000Z
UID:TALK63382@talks.cam.ac.uk
CONTACT:Alice Wood
DESCRIPTION:"The deepest and most interesting unsolved problem in solid st
 ate theory is probably the theory of the nature of glass and the glass tra
 nsition." [PW Anderson\, Science 267 (1995) 1615].  This talk will focus o
 n developments in understanding and exploiting the glassy state that is fo
 rmed when a liquid is cooled into a solid state without crystallizing.  We
  will consider such questions as the extent to which glasses should be con
 sidered to be disordered or ordered.   Metallic glasses can show excellent
  mechanical properties — this leads to possible applications\, but also 
 opens up the possibility of using mechanical working to change the structu
 re and properties of glass\, something hardly explored for conventional ox
 ide glasses.  Chalcogenide glasses can show ultra-rapid crystallization an
 d this is exploitable in computer memory.  Focusing on metallic and chalco
 genide systems\, a variety of recent studies will be reviewed.  An example
  is the recent discovery that there can be significant effects on the prop
 erties of a glass by mechanical loading even well within the (nominally) e
 lastic regime.  This contributes to the exploration of the range of energy
  that can be achieved in the glassy state\, from very high (‘rejuvenated
 ’) to very low (‘relaxed’ and even ‘ultrastable’). \n
LOCATION:Pfizer LT
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