ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Fe-sheathed MgB2 tapes were prepared by the in situ powder-in-tube (PIT) techniqueusing nanoscale Si/N/C and SiC whisker as doping materials, respectively. It is found that the dopedtapes exhibited superior field performance and higher critical current (JC) values than the undopedtapes in the magnetic field up to 12 T. Moreover, the improvement of JC for the SiC whisker dopedsamples was more significantly than that in Si/N/C doped tapes, while flux pinning abilityenhancements were similar. It is proposed that the difference of impurity content in MgB2 matrix,which affects the grain connectivity, is responsible for JC value difference between Si/N/C and SiCwhisker doped samples
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/16/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.546-549.2041.pdf
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