NDLI: Effects of High Pressure on the Physical Properties of MgB$

Content Provider	Springer Nature Link
Author	Prikhna, T. Gawalek, W. Savchuk, Y. Soldatov, A. Sokolovsky, V. Eisterer, M. Weber, H. W. udem, J. Serga, M. Turkevich, V. Tompsic, M. Tkach, V. Danilenko, N. Goldacker, W. Karau, F. Fesenko, I. Rindfleisch, M. Dellith, J. Wendt, M. You, S. Meerovich, V. Dub, S. Moshchil, V. Sergienko, N. Kozyrev, A. Habisreuther, T. Schmidt, C. Litzkendorf, D. Nagorny, P. Sverdun, V.
Copyright Year	2010
Abstract	The synthesis of MgB$_{2}$-based materials under high pressure gave the possibility to suppress the evaporation of magnesium and to obtain near theoretically dense nanograined structures with high superconducting, thermal conducting, and mechanical characteristics: critical current densities of 1.8–1.0×10$^{6}$ A/cm$^{2}$ in the self-field and 10$^{3}$ A/cm$^{2}$ in a magnetic field of 8 T at 20 K, 5–3×10$^{5}$ A/cm$^{2}$ in self-field at 30 K, the corresponding critical fields being H $_{c2}$=15 T at 22 K and irreversible fields H $_{irr}$=13 T at 20 K, and H $_{irr}$=3.5 T at 30 K, thermal conduction of 53±2 W/(m⋅K), the Vickers hardness H $_{V}$=10.12±0.2 GPa under a load of 148.8 N and the fracture toughness K $_{1C }$=7.6±2.0 MPa⋅m$^{0.5}$ under the same load, the Young modulus E=213 GPa. Estimation of quenching current and AC losses allowed the conclusion that high-pressure-prepared materials are promising for application in transformer-type fault current limiters working at 20–30 K.
Starting Page	137
Ending Page	150
Page Count	14
File Format	PDF
ISSN	15571939
Journal	Journal of Superconductivity and Novel Magnetism
Volume Number	24
Issue Number	1-2
e-ISSN	15571947
Language	English
Publisher	Springer US
Publisher Date	2010-10-07
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Bulk magnezium diboride Superconducting Mechanical Thermal conduction properties Characterization and Evaluation of Materials Magnetism, Magnetic Materials Strongly Correlated Systems, Superconductivity Condensed Matter Physics
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Condensed Matter Physics

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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