ISSN:
1662-8985
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:
The superconductive MgB2/Al composite material with low and high volume fractions ofparticles were fabricated by our special 3-dimensional penetration casting (3DPC) method. Thecomposite material showed homogeneous distribution of MgB2 particles in the Al-matrix with neitherany aggregation of particles nor defects such as cracks or cavities. The critical temperature ofsuperconducting transition (TC) was obtained via electrical resistivity and magnetization to be about37 ~ 39K. The Meissner effect was also verified in the liquid He, in which a piece of the compositefloated above a permanent magnet. Extruded rod and wire were successfully fabricated and they alsoshowed onset TC of 39 K on their electrical resistivities as the same as the billet sample
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/39/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.26-28.313.pdf
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