Reference : Simulated growth and microstructure of DyBa2Cu3O7-X with and without Dy2BaCUO5 addition
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Physics
http://hdl.handle.net/2268/17959
Simulated growth and microstructure of DyBa2Cu3O7-X with and without Dy2BaCUO5 addition
English
Vandewalle, Nicolas mailto [Université de Liège - ULg > Département de physique > Physique statistique >]
Cloots, Rudi mailto [Université de Liège - ULg > Département de chimie (sciences) > Chimie inorganique structurale - Doyen de la Faculté des Sciences >]
Ausloos, Marcel mailto [Université de Liège - ULg > Département de physique > Physique statistique appliquée et des matériaux - S.U.P.R.A.S. >]
Feb-1995
Journal of Materials Research
Subscription Fulfillment, Materials Research Society
10
2
268-273
Yes (verified by ORBi)
0884-2914
Warrendale
PA
[en] We present optical observations of magnetically melt-textured DyBa2Cu307-x with and without 20 wt. % excess of Dy2BaCu05. From these observations, we propose some kinetic mechanism of the growth of 123 compounds. Kinetic processes can simulated on computers. Two (very) simple models derived from the well-known Eden model are presented. They simulate the growth of the grain front. The simulated patterns agree with the observations. The microstructure of such materials cannot be explained by thermodynamic and chemical considerations alone, but explanations must include the kinetics of the growth front as well. From our observations, we conclude that the growth probability ratios g(110)/g(100)/g(001) are of the order of 10 and 50, respectively.
Researchers ; Professionals ; Students
http://hdl.handle.net/2268/17959

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