Article (Scientific journals)
Preferred Orientation Contribution to the Anisotropic Normal State Resistivity in Superconducting Melt-Cast Processed Bi2Sr2CaCu2O8+δ
Dellicour, Aline; Vertruyen, Bénédicte; Rikel, M O et al.
2017In Materials, 10, p. 534
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Keywords :
texture; neutron diffraction; superconductor; Bi2Sr2CaCuO8; anisotropy; resistivity
Abstract :
[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.
Disciplines :
Chemistry
Author, co-author :
Dellicour, Aline ;  Université de Liège > Département de chimie (sciences) > LCIS - GreenMAT
Vertruyen, Bénédicte  ;  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;  Université de Caen Basse-Normandie > CRISMAT
Language :
English
Title :
Preferred Orientation Contribution to the Anisotropic Normal State Resistivity in Superconducting Melt-Cast Processed Bi2Sr2CaCu2O8+δ
Publication date :
15 May 2017
Journal title :
Materials
eISSN :
1996-1944
Publisher :
MDPI AG, Basel, Switzerland
Special issue title :
Special Issue "Textures and Anisotropy in Advanced Materials"
Volume :
10
Pages :
534
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 10 August 2017

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