(Fe,Si,Al)-based nanocrystalline soft magnetic alloys for cryogenic applications

Daniil, Maria; Osofsky, Michael S.; Gubser, Donald U.; Willard, Matthew A.
April 2010
Applied Physics Letters;4/19/2010, Vol. 96 Issue 16, p162504
Academic Journal
In this work Al and Si are substituted for Fe in a (Fe,Si,Al)–Nb–B–Cu alloy with the goal of improving its magnetic properties at 77 K. The x-ray diffraction patterns for a series of five alloys annealed at 823 K shows a Fe3(Si,Al) ordered phase with some residual amorphous phase. The lowest coercivity at room temperature was observed for the alloy with composition Fe68Si15.5Al3.5Nb3B9Cu1. At cryogenic temperatures, the saturation magnetization of 99.3 A m2/kg, coercivity of 0.45 A/m, and resistivity of 122 μΩ cm for the Fe63Si17.5Al6Nb3B9Cu1 alloy, compare favorably to commercial alloys at 77 K.


Related Articles

  • Synthesis and magnetic properties of Pr(Fe[sub 1-x]Co[sub x])[sub 2] and Pr[sub 1-y]Tb[sub y](Fe[sub 0.4]Co[sub 0.6])[sub 2] alloys. Tang, S. L.; Li, H. B.; Zhang, P.; Wang, D. H.; Lu, M.; Du, Y. W. // Applied Physics A: Materials Science & Processing;2004, Vol. 78 Issue 7, p1085 

    Measurement of X-ray diffraction, magnetization and magnetostriction was made on the Pr(Fe[sub 1-x]Co[sub x])[sub 2] (x=0.4, 0.5 and 0.6) and Pr[sub 1-y]Tb[sub y](Fe[sub 0.4]Co[sub 0.6])[sub 2] (y=0, 0.1, 0.2 and 0.3) alloy series. It was found that a cubic phase with the MgCu[sub 2] structure...

  • The Influence of Heat Treatment on Soft Magnetic Properties of the Fe60Co10Mo2Y8B20 Alloy. GARUS, S.; NABIAŁEK, M.; GARUS, J. // Acta Physica Polonica, A.;2014, Vol. 126 Issue 4, p960 

    This paper presents the results of studies on the magnetic properties of the Fe60Co10Mo2Y8B20 alloy. The samples were fabricated in the form of plates by the injection-casting method. The structure of the investigated alloy, in the as-quenched state and after annealing, was verified by using...

  • Influence of Plastic Deformation on the Magnetic Properties of Fe-Al Alloys. Rodríguez, D. Martín; Plazaola, F.; Garitaonandia, J. S.; Jiménez, J. A. // AIP Conference Proceedings;2005, Vol. 765 Issue 1, p190 

    Fe-Al alloys are known to change its magnetic properties with the destruction of the intermetallic order by plastic deformation. The present work studies how the plastic deformation affects the magnetic properties along the Fe-rich part of the phase diagram by Mössbauer spectroscopy and X-ray...

  • Thermal analysis of two Fe-X-B (X=Nb, ZrNi) alloys prepared by mechanical alloying. Suñol, J. J.; González, A.; Saurina, J. // Journal of Thermal Analysis & Calorimetry;2003, Vol. 72 Issue 1, p329 

    The alloys, Fe60Ni14Zr6B20 and Fe85Nb9B6, were produced by mechanical alloying. The formation of the nanocrystallites (about 40 nm) was detected by X-ray diffraction. Furthermore, a slight oxygen presence (<3 at.%) was found by induced-coupled plasma and EDX microanalysis. After milling,...

  • Structural, microstructural and Mössbauer studies of nanocrystalline Fe100-x Alx powders elaborated by mechanical alloying. Boukherroub, N.; Guittoum, A.; Souami, N.; Akkouche, K.; Boutarfaia, S. // EPJ Web of Conferences;2012, Issue 29, p00010-p.1 

    Nanocrystalline Fe100-xAlx powders (x= 25, 30, 34 and 40 at %) were prepared by the mechanical alloying process using a vario-planetary high-energy ball mill for a milling time of 35 h. The formation and physical properties of the alloys were investigated as a function of Al content by means of...

  • Magnetic Properties and Nanocrystalline Phases in Sn Containing SmCo Alloys. Zaigham, Hamid; Khalid, F. // Journal of Materials Engineering & Performance;Oct2011, Vol. 20 Issue 7, p1304 

    SmCo alloys with Sn additions (0.2-2.0 at.%) were prepared by mechanical milling of arc-melted samples. The nano-phase structures and magnetic properties of as-milled powders were investigated. The Sn additions resulted in development of nanocrystalline structures producing exchange-coupled...

  • Structure and magnetic properties of nanocrystalline PrCo3. Younsi, K.; Russier, V.; Bessais, L. // Journal of Applied Physics;Apr2010, Vol. 107 Issue 8, p083916 

    The structure and magnetic properties of nanocrystalline PrCo3 prepared by high-energy milling technique have been investigated by means of x-ray diffraction using the Rietveld method coupled to Curie temperature and magnetic measurements. The as-milled samples were subsequently annealed in...

  • Magnetization Reversal Processes in Pr-Fe-B-type Nanocrystalline Magnets. PAWLIK, K.; PAWLIK, P.; KASZUWARA, W.; WYSŁOCKI, J. J. // Acta Physica Polonica, A.;Jul2014, Vol. 126 Issue 1, p186 

    The magnetization reversal processes in magnets derived from rapidly solidified Pr9Fe52Co13Zr1Nb4B21 alloy samples were studied by analysis of minor hysteresis loops and recoil curves. The studies were carried out on suction-cast 1 mm diameter rod, 1 mm thick plate, 3 mm outer diameter (o.d.)...

  • Thermal and structural study of nanocrystalline Fe(Co)NiZrB alloys prepared by mechanical alloying. González, A.; Escoda, L.; Suñol, J. J.; Shao, G.; Arcondo, B.; Bruna, P. // Journal of Materials Science;Jan2010, Vol. 45 Issue 2, p557 

    Three nanocrystalline alloys, Fe75− xCo x(Ni70Zr30)15B10 ( x = 0, 10, and 20), were synthesized from elemental powders in a planetary high-energy ball mill. Their microstructure, magnetic properties, and thermal stability were characterized by X-ray diffraction, transmission Mössbauer...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics