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183 results on '"Gritzner, Gerhard"'

9. Tl-1223 thick films-A competitor for Y-123 coated conductors?

Author

Tonies, Sussane, Weber, Harald W., Gritzner, Gerhard, Heiml, Oliver, and Eder, Mario H.

Subjects
Flux pinning -- Research, Thick films -- Research, Thick films -- Spectra, Superconductors -- Research, Business, Electronics, Electronics and electrical industries
Abstract

Investigating the irreversible properties of the Tl-1223 thick films with Y-123 coated conductors and Bi-2223 tapes obtained by dc transport measurement is discussed. It is concluded that the critical current density in the films is not limited by grain boundaries due to their excellent texture.

Published
2003

18. MgB2 thick films via screen printing

Author

Gritzner, Gerhard, Kuhberger, Markus, Tonies, Susanne, and Weber, Harald W.

Subjects
Screen process printing -- Research, Thick films -- Research, Magnesium compounds -- Research, Business, Electronics, Electronics and electrical industries
Abstract

Investigating the fabrication of MgB2 thick films on different substrates using a simple screen-printing method is discussed. It is concluded that the critical current densities are dependent only modestly on the external field.

Published
2003

31. Formation pathways in the synthesis and properties of (Ti0.5Pb0.5)(Sr0.9Ba0.1)(2)Ca2Cu3Oz and (Ti0.5Pb0.5)(Sr0.8Ba0.2)(2)Ca2Cu3Oz-1223 superconductors

Author

Auinger, M., Gritzner, Gerhard, Bertrand, Christiane, Galez, Philippe, Soubeyroux, Jean-Louis, Institute for Chemical Technology of inorganic Materials, Johannes Kepler Universität Linz (JKU)-Institue of chemicals Technology of inorganics Materials, Laboratoire SYstèmes et Matériaux pour la MEcatronique (SYMME), Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry]), Magnétisme et Supraconductivité (MagSup), Institut Néel (NEEL), and Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)

Subjects
TL-2223, THICK-FILMS, CRITICAL-CURRENT DENSITIES, [CHIM.MATE]Chemical Sciences/Material chemistry
Abstract

International audience; The formation pathway of ( Tl0.5Pb0.5)( Sr0.9Ba0.1)(2)Ca2Cu3Oz and (Tl0.5Pb0.5)(Sr0.8Ba0.2)(2)Ca2Cu3Oz was studied by neutron and x- ray diffraction. The following reaction pathway was proposed: thallium oxide and lead oxide react with Sr- rich ( Sr(1-x)Cax) CuO2 and Ca-rich ( CaxSr1-x)O to form Sr4Tl2O7 and ( Cax Sr1-x) PbO3, respectively. The thallate and the plumbate compounds then form the ( Tl0.5Pb0.5)-1212 phase starting at a temperature of 600 degrees C. Finally, between 850 and 900 degrees C, the 1223 phase is formed from (Tl0.5Pb0.5)-1212, ( CaxSr1-x)(2)CuO3 and CuO. Parallel experiments to fabricate the ( Tl, Pb)- 1223 superconductor resulted in specimens with critical temperatures of 117.5 K and 116 K, respectively, and transition widths of 2 K. Differences between the pathways for the formation of Pb- doped, Sr- rich and Pb- free, Ba- rich Tl- 1223 superconductors are discussed.

Published
2007
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