Texture, Stress, and Microstructure

Texture, Stress, and Microstructure / 1995 / Article
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Textures in Ceramics

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Volume 24 |Article ID 235716 | https://doi.org/10.1155/TSM.24.93

Dietrich Schläfer, Klaus Fischer, Margitta Schubert, Brigitte Schlobach, "Texture Investigations on High Temperature Superconductors", Texture, Stress, and Microstructure, vol. 24, Article ID 235716, 11 pages, 1995. https://doi.org/10.1155/TSM.24.93

Texture Investigations on High Temperature Superconductors

Received10 Sep 1994
Accepted07 Nov 1994


The formation of a structure with strong crystallographic texture is an important requirement for high critical current densities at 77 K in high temperature superconductive materials (HTSC). In this work several methods for texture investigation in the superconductive phase of BiPbSrCaCuO/Ag- and YBaCuO/AgPd-composite conductors prepared according to the “powder in tube”-method as well as in YBaCuO-thick layers are presented. For the characterisation of the texture development in dependence on technological steps at the preparation of HTSC-composite conductors the determination of the halfwidth FWHM from the psi-scan or for one-phase specimens the determination of the Lotgering-factor is appropriate, if only a c-axis exists. The measurement of pole figures is necessary to determine, whether a rotation symmetry occurs or an orientation of the (a,b)-directions exists. The use of the omega-scan to determine the half-width is not useful, if the goniometer unit is intended and optimised for phase analysis and therefore the secondary monochromator cannot be relinquished.

Copyright © 1995 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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