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SUMMARY:Atomistic simulation of interfaces in glass/crystal composites for
  nuclear waste forms
DTSTART;VALUE=DATE-TIME:20171101T033000Z
DTEND;VALUE=DATE-TIME:20171101T034500Z
DTSTAMP;VALUE=DATE-TIME:20260608T210941Z
UID:indico-contribution-1213@events01.synchrotron.org.au
DESCRIPTION:Speakers: Paul C. M. Fossati (Imperial College London)\nHigh-L
 evel Waste (HLW) resulting from fuel reprocessing is immobilised in a boro
 silicate glass matrix\, particularly in France and the UK.\nSome HLW compo
 nents have higher melting points than the glass\, and thus never disolve i
 nto the melt.\nOther crystalline phases may also form during fabrication d
 ue to limited solubility.\nSeparation could also occur later through a pro
 cess of devitrification.\nThe resultant waste form may therefore demonstra
 te significant heterogeneity with secondary crystal phases  embedded in a 
 glass matrix.\n\nThe purpose of this study is to improve understanding of 
 the issues associated with such microstructures in vitrified  wasteforms.\
 nWe will present results from atomistic simulations showing properties of 
 glass/crystal interfaces in a surrogate composite formed of (Na$_{2}$)$_{x
 }$(SiO$_{2}$)$_{1-x}$ glass and rutile TiO$_{2}$ crystals.\nThe potentials
  employed have been widely used for glass materials. We will discuss their
  applicability to glass/crystal composite structures.\nWe will show struct
 ural and energetic features predicted for these interfaces and consider th
 e effect of radiation damage.\n\nhttps://events01.synchrotron.org.au/event
 /51/contributions/1213/
LOCATION:
URL:https://events01.synchrotron.org.au/event/51/contributions/1213/
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