BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Memento EPFL//
BEGIN:VEVENT
SUMMARY:IMX Seminar Series - Nucleation of diffusion controlled phase tran
 sformations in the solid state\, beyond or beside classical nucleation the
 ory ?
DTSTART:20241111T131500
DTEND:20241111T141500
DTSTAMP:20260921T194854Z
UID:b977bbf6e397b2ad9849d012f65f201708396ea420e474f370bb744c
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. Yves Bréchet\, professeur à Monash University\, membre
  de l’Académie des sciences et directeur scientifique de Saint Gobain\n
 First order phase transformations in metallic alloys may occur in a number
  of ways\, depending if the composition is conserved or changed\, and depe
 nding on the mechanisms of structural transformations from one crystallogr
 aphy to another. When the transformation is diffusion controlled\, it may 
 occur by the amplification of concentration fluctuation (spinodal decompos
 ition)\, or by nucleation and growth of the new phase. The classical nucle
 ation theory\, developed initially for liquids and solids\, have been adap
 ted to solid state transformations in pure metal and binary alloys. In all
 oys having more than three elements\, where the diffusion coefficients may
  differ by orders of magnitude\, the situation is more complex\, both for 
 the growth mechanisms\, but also for the nucleation mechanisms. Recent exp
 erimental observations and simple calculation show the necessity to revisi
 t classical nucleation theory in this context.\n\nBio: Yves Bréchet is a 
 member of the French Academy of Sciences.\nAs a specialist in materials sc
 ience\, he got interested both on microstructural evolution in metals and 
 alloys\, and on their consequences on mechanical properties\, plasticity a
 nd fracture. Involved both in fundamental issues such as plastic instabili
 ties and kinetics of phase transformations\, he also worked closely with M
 .F. Ashby on materials selection methods and development of tailored “ar
 chitecture materials”. In these fields he has authored or co authored 5 
 books and more than 600 publications.\nProfessor during more than 30 years
  in Grenoble University (1988-2012) \, he also held the annual chair «  
 Innovation » in  college de France ( 2012-2013)\, and is now res\, a re
 search professor in Monash University (Australia) and adjunct professor at
  McMaster University (Canada). He is currently Scientific director of Sain
 t Gobain compagny\, a worldwide Materials industry which is more than 350 
 years old.\nHe has held the position of «  Haut Commissaire à l’éner
 gie atomique » ( 2012-2018) which is the scientific advisor of the frenc
 h government for energy related questions.\n 
LOCATION:MXF 1 https://plan.epfl.ch/?room==MXF%201
STATUS:CONFIRMED
END:VEVENT
END:VCALENDAR