Combined Analysis of Bi2223 Superconducting Bulk Materials
Orientation distributions of polyphased (Bi,Pb)2Sr2Ca2Cu3O10+d superconducting textured materials are determined from neutron diffraction analysis. The quantitative texture analysis of neutron data was accomplished by using the combined Rietveld-WIMV-Popa algorithms, implemented in the program package Materials Analysis Using Diffraction (MAUD). Curved position-sensitive detector and 4-circle diffractometry allow the whole diffraction pattern treatment. Transport critical current densities, measured on different samples, are strongly dependent of the calculated texture strengths, crystallite sizes and phase ratios. The results prove the interest of the combined approach for a quantitative texture analysis of complex materials. Texture to anisotropic physical properties relationship is discussed.
C. Esling, M. Humbert, R.A. Schwarzer and F. Wagner
E. Guilmeau et al., "Combined Analysis of Bi2223 Superconducting Bulk Materials", Solid State Phenomena, Vol. 105, pp. 385-390, 2005