Reference : Preferred Orientation Contribution to the Anisotropic Normal State Resistivity in Sup...
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Chemistry
Preferred Orientation Contribution to the Anisotropic Normal State Resistivity in Superconducting Melt-Cast Processed Bi2Sr2CaCu2O8+δ
Dellicour, Aline mailto [Université de Liège > Département de chimie (sciences) > LCIS - GreenMAT >]
Vertruyen, Bénédicte mailto [Université de Liège > Département de chimie (sciences) > Chimie inorganique structurale >]
Rikel, M O [Nexans Superconductors, 30179 Hannover, Germany > > > >]
Lutterotti, Luca []
Pautrat, Alain [Université de Caen Basse-Normandie > > CRISMAT > >]
Ouladdiaf, Bachir [Institut Laue-Langevin > > > >]
Chateigner, Daniel mailto [Université de Caen Basse-Normandie > > CRISMAT > >]
Special Issue "Textures and Anisotropy in Advanced Materials"
[en] texture ; neutron diffraction ; superconductor ; Bi2Sr2CaCuO8 ; anisotropy ; resistivity
[en] We describe how the contribution of crystallographic texture to the anisotropy of the
resistivity of polycrystalline samples can be estimated by averaging over crystallographic orientations
through a geometric mean approach. The calculation takes into account the orientation distribution
refined from neutron diffraction data and literature values for the single crystal resistivity tensor. The
example discussed here is a melt-cast processed Bi2Sr2CaCu2O8+ (Bi-2212) polycrystalline tube in
which the main texture component is a <010> fiber texture with relatively low texture strength.
Experimentally-measured resistivities along the longitudinal, radial, and tangential directions
of the Bi-2212 tube were compared to calculated values and found to be of the same order of
magnitude. Calculations for this example and additional simulations for various texture strengths
and single crystal resistivity anisotropies confirm that in the case of highly anisotropic phases such
as Bi-2212, even low texture strengths have a significant effect on the anisotropy of the resistivity in polycrystalline samples.

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