Reference : Copper whisker growth from inside sulfur-doped YBa2Cu307-X pellets
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Physics
http://hdl.handle.net/2268/17961
Copper whisker growth from inside sulfur-doped YBa2Cu307-X pellets
English
Cloots, Rudi mailto [Université de Liège - ULg > Département de chimie (sciences) > Chimie inorganique structurale - Doyen de la Faculté des Sciences >]
Krekels, T. [ > > ]
Warin, R. [ > > ]
Vandewalle, Nicolas mailto [Université de Liège - ULg > Département de physique > Physique statistique >]
Ausloos, Marcel mailto [Université de Liège - ULg > Département de physique > Physique statistique appliquée et des matériaux - S.U.P.R.A.S. >]
Jun-1995
Journal of Solid State Chemistry
Academic Press
117
1
151-156
Yes (verified by ORBi)
0022-4596
San Diego
CA
[en] We report on the growth of Cu whiskers (10 mu m in linear transverse size) at the surface of a YBCO pellet, in a sulfur-rich atmosphere at a high synthesis temperature. Growth arises from inside the pellet since there is no Cu in the surrounding atmosphere. We present the experimental conditions and electron microscopic observations. We briefly propose a mechanism based on chemical considerations, in particular, a Cu reductive nucleation of the CuS phase at the surface of YBCO. Natural phenomena, laboratory findings, and computer simulation work (based on an Eden model) support this interpretation.
Researchers ; Professionals ; Students
http://hdl.handle.net/2268/17961

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