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:
In-situ MgB2/Fe tapes were fabricated by the powder in tube (PIT) technology using Mgand B powders. The tapes were sintered by both an advanced spark plasma sintering (SPS) and aconventional vacuum furnace, respectively. The effects of these two sintering routes on theproperties of the MgB2 tapes were investigated by the analysis of XRD, SEM and the magnetic Jcmeasurements. It was shown that at 10K, 0T, the magnetic Jc value of the tape sintered using SPSmachine at 800˚C for 15min under 30MPa were close to 106A/cm2, which was higher than that ofthe tapes annealed at 700˚C for 2h under pressureless vacuum condition. It was found that thedensity and the homogeneity of the MgB2 core were strongly improved using SPS sintering process,which explained why the MgB2 tapes sintered by SPS method have a higher Jc value. Furtherenhancement of Jc in the tapes is expected for the understanding of the SPS sintering mechanism
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/16/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.546-549.2059.pdf
Permalink