Paper Title:

High-Pressure High-Temperature Synthesis of Nanostructural Magnesium Diboride for Electromotors and Devices Working at Liquid Hydrogen Temperatures

Periodical Advances in Science and Technology (Volume 47)
Main Theme Science and Engineering of Novel Superconductors V
Edited by P. VINCENZINI and A. RIGAMONTI
Pages 25-30
DOI 10.4028/www.scientific.net/AST.47.25
Citation Tatiana Prikhna et al., 2006, Advances in Science and Technology, 47, 25
Online since October 2006
Authors Tatiana Prikhna, Wolfgang Gawalek, Yaroslav Savchuk, Nina Sergienko, Viktor Moshchil, Sergey N. Dub, Vladimir Sverdun, Leo Kovalev, Vladimir Penkin, Oleg Rozenberg, Matthias Zeisberger, Michael Wendt, Gunter Fuchs, Chris Grovenor, Sarah Haigh, Vladimir S. Melnikov, Peter Nagorny
Keywords High Pressure Synthesis of Magnesium Diboride, Superconductive Electromotor, Titanium (Ti), Zr Additions
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Addition of Ti and Zr to high-pressure (HP) synthesized MgB2 results in an increase of critical current density of the material due to the absorption of impurity hydrogen coming most likely from the materials of a high-pressure cell. The results of the studies of structure, critical current density, trapped field and mechanical characteristics are discussed. High-pressure synthesized MgB2 (with Ti additions) blocks were for the first time used in a SC electromotor at 20 K and demonstrated the efficiency similar to that of MT-YBCO bulk (at the same working temperature).