Paper Title:
MgB2 Composite Superconductors Made by Ex Situ and In Situ Process
  Abstract

Generally, two basic routes called as in-situ and ex-situ process are used for composite MgB2 wires now. Mentioned processes have been used for making of single-core composite wires. The applied heat treatment parameters influence the microstructure of MgB2 phase, critical temperature and critical current density, but it has also decisive effect on the MgB2/metal reaction. It was found that the transport current densities are much more sensitive to the used sheath material than critical temperatures. The main factors limiting the transport current density are cracks introduced by deformation and porosity caused by the boron diffusion in ex-situ and in-situ wires, respectively.

  Info
Periodical
Edited by
P. VINCENZINI and A. RIGAMONTI
Pages
131-136
DOI
10.4028/www.scientific.net/AST.47.131
Citation
P. Kováč, I. Hušek, T. Melišek, "MgB2 Composite Superconductors Made by Ex Situ and In Situ Process", Advances in Science and Technology, Vol. 47, pp. 131-136, 2006
Online since
October 2006
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Price
$32.00
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