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SUMMARY:The Evolution of Solutions - Prof Harry Bhadeshia\, Department of 
 Materials Science &amp\; Metallurgy\, Cambridge
DTSTART:20191018T130000Z
DTEND:20191018T140000Z
UID:TALK130948@talks.cam.ac.uk
CONTACT:Hilde Hambro
DESCRIPTION:Solid solutions are common in metallurgy - like ordinary liqui
 d solutions\, their free energy is less sensitive to variations in chemica
 l composition unlike compounds which tend to have fixed ratios of solutes.
  \nMetallic solid solutions are sometimes created without melting\, becaus
 e it then becomes possible to make exotic compositions without the problem
 s of chemical segregation or the limits of solubility. The process involve
 s the attrition together of the chemical components\, for example in a bal
 l mill\, until mixing is complete. In this talk I will address whether thi
 s is in fact a true scenario considering both experimental data at an atom
 ic resolution and theory. The latter takes the form of a new treatment of 
 the  thermodynamics of particle mixtures in which the particles are no lon
 ger atoms. Some novel phenomena emerge\, which I hope will stimulate new t
 hinking.\n
LOCATION:Oatley Seminar Room\, Department of Engineering
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