There are provided a soft magnetic material having a high saturation magnetization and a low coercive force and excellent in thermal endurance, and a method for producing the same. The present disclosure relates to a soft magnetic material represented by the following composition formula: Fe.sub.100-x-yB.sub.xNi.sub.y, wherein x satisfies 10x16 in at %, and y satisfies 0<y4 in at %, having a coercive force of 20 A/m or less, and having a coercive force characteristic decrease rate after a thermal endurance test {[(coercive force after thermal endurance testcoercive force before thermal endurance test)/coercive force before thermal endurance test]100 (%)} of 20% or less, wherein the thermal endurance test is carried out by allowing the soft magnetic material to stand in a constant temperature oven at 170 C. in the air for 100 h, and a method for producing the same.

A nanocomposite comprising crystalline grains in an amorphous matrix, the crystalline grains comprising an iron (Fe)-nickel (Ni) compound and being separated from one another by the amorphous matrix; and one or more barriers between the crystalline grains and the amorphous matrix, the barriers being configured to inhibit growth of the crystalline grains during forming of the crystalline grains, a barrier of the one or more barriers being between a crystalline grain and the amorphous matrix; wherein the amorphous matrix comprises an increased resistivity relative to a resistivity of the crystalline grains; and wherein the amorphous matrix is configured to reduce losses of the crystalline grains caused by a change in a magnetic field applied to the crystalline grains relative to losses of the crystalline grains that occur without the amorphous matrix.

One embodiment provides a structure, comprising: a display; at least one structural component disposed over a portion of the display, wherein the at least on structural component comprises at least one amorphous alloy; and wherein a portion of the display is foldable.

Disclosed is an iron-based amorphous alloy Fe.sub.aB.sub.bSi.sub.cRE.sub.d, wherein a, b, and c represent, in atomic percentages, the contents of corresponding components, respectively; 83.0?a?87.0, 11.0<b<15.0, 2.0?c?4.0, and a+b+c=100; and d is the concentration of RE in the iron-based amorphous alloy, i.e. 10 ppm?d?30 ppm. The iron-based amorphous alloy has a saturation magnetic induction intensity of no less than 1.63 T, and same can be used to manufacture a magnetic core material for power transformers, motors and inverters.

The present invention achieves an object of continuously supplying a melt from a melt nozzle over a long period of time by adjusting the contents of Mn and S in an FeBSiC-type amorphous alloy ribbon. An amorphous alloy ribbon of the present invention includes a composition containing Fe, Si, B, C, Mn, S, and inevitable impurities, the composition containing, with respect to 100.0 atm % of the total amount of Fe, Si, B, and C, 3.0 atm % or more and 10.0 atm % or less of Si, 10.0 atm % or more and 15.0 atm % or less of B, and 0.2 atm % or more and 0.4 atm % or less of C, the amorphous alloy ribbon having a content ratio of Mn of more than 0.12 mass % and less than 0.15 mass %, and a content ratio of S of 0.0036 mass % or more and less than 0.0045 mass %, the amorphous alloy ribbon having a thickness of 10 m or more and 40 m or less, and a width of 100 mm or more and 300 mm or less.

A molten metal temperature control method includes: with respect to relations among a spheroidization distance traveled by a molten metal of an alloy from a nozzle tip to a position where the molten metal turns into droplets, the temperature of the molten metal inside the crucible, and a pressure acting on the molten metal inside the crucible, obtaining a relation between the temperature and the spheroidization distance at a predetermined pressure, and setting a predetermined temperature range of the temperature; measuring a spheroidization distance when discharging the molten metal from the crucible at the predetermined pressure, and specifying a temperature corresponding to the measured spheroidization distance; and comparing the specified temperature and the predetermined temperature range, and when the specified temperature is outside the predetermined temperature range, controlling the specified temperature so as to be within the predetermined temperature range by adjusting the temperature inside the crucible.

An iron-based amorphous alloy. The iron-based amorphous alloy comprises components Fe.sub.aB.sub.bSi.sub.c, a, b and c respectively indicating atomic percentage contents, 79.5a82.5, 11.0b13.5, 6.5c8.5, and a+b+c=100. An iron-based amorphous alloy strip is obtained by means of a rapid quenching method in which a single roller is used. Because the iron-based amorphous alloy has higher saturated magnetic induction density, a higher amorphous formation capability and lower stress-resistance sensitivity, the iron-based amorphous alloy can be used as an iron core material for preparing a power transformer, a power generator and an engine; in addition, due to the low stress sensitivity of the iron-based amorphous alloy, the sudden short-circuit resistance capability of an amorphous transformer can be improved when the power transformer is prepared.

An alloy of Fe.sub.100-a-b-c-d-x-y-zCu.sub.aNb.sub.bM.sub.cT.sub.dSi.sub.xB.sub.yZ.sub.z and up to 1 atomic % impurities; M is one or more of Mo or Ta, T is one or more of V, Cr, Co or Ni and Z is one or more of C, P or Ge, wherein 0.0 atomic %a<1.5 atomic %, 0.0 atomic %b<3.0 atomic %, 0.2 atomic %c4.0 atomic %, 0.0 atomic %d<5.0 atomic %, 12.0 atomic %<x<18.0 atomic %, 5.0 atomic %<y<12.0 atomic % and 0.0 atomic %z<2.0 atomic %, and wherein 2.0 atomic %(b+c)4.0 atomic %, produced in the form of a strip and having a nanocrystalline structure in which at least 50% by volume of the grains have an average size of less than 100 nm, a remanence ratio J.sub.r/J.sub.s<0.02, J.sub.r being the remanent polarization and J.sub.s being the saturation polarization, and a coercitive field strength H.sub.c which is less than 1% of the anisotropic field strength H.sub.a and/or less than 10 A/m.

A method according to one embodiment includes combining an amorphous iron-based alloy and at least one metal selected from a group consisting of molybdenum, chromium, tungsten, boron, gadolinium, nickel phosphorous, yttrium, and alloys thereof to form a mixture, wherein the at least one metal is present in the mixture from about 5 atomic percent (at %) to about 55 at %; and ball milling the mixture at least until an amorphous alloy of the iron-based alloy and the at least one metal is formed. Several amorphous iron-based metal alloys are also presented, including corrosion-resistant amorphous iron-based metal alloys and radiation-shielding amorphous iron-based metal alloys.

A method for producing a soft magnetic material having both high saturation magnetization and low coercive force, including: preparing an alloy having a composition represented by Compositional Formula 1 or 2 and having an amorphous phase, and heating the alloy at a rate of temperature rise of 10 C./sec or more and holding for 0 to 80 seconds at a temperature equal to or higher than the crystallization starting temperature and lower than the temperature at which FeB compounds start to form wherein, Compositional Formula 1 is Fe.sub.100-x-yB.sub.xM.sub.y, M represents at least one element selected from Nb, Mo, Ta, W, Ni, Co and Sn, and x and y are in atomic percent (at %) and satisfy the relational expressions of 10x16 and 0y8, and Compositional Formula 2 is Fe.sub.100-a-b-cB.sub.aCu.sub.bM.sub.c, M represents at least one element selected from Nb, Mo, Ta, W, Ni and Co, and a, b and c are in atomic percent (at %) and satisfy the relational expressions 10a16, 0<b2 and 0c8.