The effect of induced transverse magnetic anisotropy in Finemet-type nanocrystalline alloys modified by Co on their magnetic properties and power losses.

• Autorzy: Kolano R. , Kolano-Burian A. , Szynowski J. , Debudaj J. , Klimasara Z. , Burian W.
• Konferencja: International Conference on Fabrication and Properties of Metallic Nanomaterials, Warsaw, 17-19 June, 2004.
• Języki publikacji: EN

Abstrakty

EN

The process of inducing tranverse magnetic anisotropy in toroidal cores was investigated. Ribbon amorphousness was detrermined by the XRD method. Thermo-magnetic treatment was used to induce transverse magnetic anisotropy. The (Fe1-xCox)73.5Cu1Nb3Si13.5B9 cores containing various amounts of Co (from x=0 to 0.8) were subjected to heat treatment conducted at different temperatures Ta(763-823K) in an extremal magnetic field of 24 to 160 kA/m, perpendicular to the ribbon casting direction. The effect of the chemical composition, annealing temperature and magnetic field intensity on the induced transverse magnetic anisotropy was examined. Dynamic magnetic parameters of the cores (nano, Ps) were measured at the magnetizing field frequency ranging from 50 Hz to 50 kHz. The nanocrystalline cores made from the (Fe1-xCox)73.5Cu1Nb3Si13.5B9 ribbons (x=0.54; 0,8) were applied in a transformer for the 230 VAC/48 VDC rectifier, 400 W in power. The laboratory tests confirmed correct operation of these cores at the temperature of 473 K. It was also found that application of nanocrystalline cores enabled significant reduction of the transformer dimensions.

Słowa kluczowe

EN

magnetic anisotropy; nanocrystalline alloy; magnetic properties

PL

stopy nanokrystaliczne; własności magnetyczne; anizotropia magnetyczna

• Wydawca: Komitet Nauki o Materiałach PAN
• Czasopismo: Archives of Materials Science
• Rocznik: 2004
• Tom: Vol. 25, nr 4
• Strony: 447--453

Twórcy

autor

Kolano R.

• Institute of Non-Ferrous Metals, Sowińskiego 5, 44-101 Gliwice, Poland

autor

Kolano-Burian A.

• Institute of Non-Ferrous Metals, Sowińskiego 5, 44-101 Gliwice, Poland

autor

Szynowski J.

• Institute of Non-Ferrous Metals, Sowińskiego 5, 44-101 Gliwice, Poland

autor

Debudaj J.

• Faculty of Materials Science and Engineering, Warsaw University of Technology, Wołoska 141, 02-507 Warsaw, Poland

autor

Klimasara Z.

• Electronic Wquipment Production Plant "Merawex" Ltd., Bojkowska 53, 44-122 Gliwice, Poland

autor

Burian W.

• Institute of Physics, Silesian University, Uniwersytecka 4, 40-007 Katowice, Poland

• Institute of Non-Ferrous Metals, Sowińskiego 5, 44-101 Gliwice, Poland

Bibliografia

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• [4] R. Kolano, Technical progress report of the Hit-Fcore project No G5RD-CT-2001-03009 (2002) — unpublished.
• [5] A. Kolano-Burian, J. Ferenc, T. Kulik, J. Magn. Magn. Mater., 272-276, 1447 (2004).
• [6] A. Kolano-Burian, J. Ferenc, T. Kulik, Mat. Scie. Eng. A., 375-377, 1078 (2004).