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:
Multistep current annealing (CA) treatments were performed on amorphous FINEMETtypeFe-Cu-V-Si-B, as well as on a novel Fe-Al-Ga-P-C-B alloy with a large supercooled liquidregion, in order to optimize their magnetotransport properties. On-line and post-annealing electricalresistivity measurements, DSC, XRD and Mössbauer spectroscopy were used for characterization ofstructural changes evolved during CA treatments. Results on magnetoresistance (MR) andmagnetoimpedance (MI) effects after CA in ribbon samples with relaxed amorphous as well asprecipitated nanocrystalline structure are presented. Significant improvement in MI-response afterCA up to [removed info]Z/Z ≈ 50% was recorded at frequencies 2-3 MHz. The highest MI-element sensitivitywas found for low magnetic field intensity where values of about 6 %/kA/m for samples of Fe-Al-Ga-P-C-B alloy were attained
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/13/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.518.313.pdf
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