Magnetic properties of the hypothetical compound YFe5

Maruyama, Fumio; Nagai, Hiroyuki; Amako, Yasushi; Yoshie, Hiroshi; Adachi, K.

doi:10.1016/s0921-4526(98)01450-1

Cited by 14 publications

(10 citation statements)

References 13 publications

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“…The movement of the B hf fi eld for this phase (marked as c) towards higher values may have been due to the incorporation of the Co atoms into its structure. The heat treatment process also caused the formation of a Fe 5 Y phase, which is generally regarded as a metastable [10]. This means that the amount of this phase can vary, leading to the formation of other phases containing iron or yttrium.…”

Section: Resultsmentioning

confidence: 99%

Effect of heat treatment on the shape of the hyperfine field induction distributions and magnetic properties of amorphous soft magnetic Fe₆₂Co₁₀Y₈B₂₀ alloy

et al. 2015

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Abstract. Thermal treatment, undertaken at just below the crystallization temperature, has led to nanocrystallization and has had a signifi cant impact on the shape of the hyperfi ne fi eld induction distributions of Fe 62 Co 10 Y 8 B 20 alloy and on its soft magnetic properties. In the amorphous ferromagnetic alloys, it is possible to indirectly determine the effect of the structure stresses, resulting from the presence of structural defects, on the soft magnetic properties of these materials. It has been found that a change in the parameters associated with the presence of structural defects affects the shape of the hyperfi ne fi eld distributions of 57 Fe.

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Section: Resultsmentioning

confidence: 99%

Effect of heat treatment on the shape of the hyperfine field induction distributions and magnetic properties of amorphous soft magnetic Fe₆₂Co₁₀Y₈B₂₀ alloy

et al. 2015

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“…It has been explored both experimentally and theoretically in the past due to its unique qualification as a "gap" permanent magnetic material [5,. Actually, almost all experimental papers on the YCo 5 magnet have been dedicated to studying MAE of the undoped magnet as well as doped with Sm, Nd, Ge, Fe, Cu, and Ni [5,[10][11][12][13][14][15][16][17][18][19][20][22][23][24][25][26][27][28][29][31][32][33][34][35][41][42][43][52][53][54]62,66,70,[72][73][74]77,80]. MAE, the Curie temperature, and the energy product, which are 5.7 MJ/m 3 , 921 K, and 224 kJ/m 3 , correspondingly, were first reported in refs.…”

Section: Introductionmentioning

confidence: 99%

Thermodynamics and Magnetism of YCo5 Compound Doped with Fe and Ni: An Ab Initio Study

et al. 2020

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YCo5 permanent magnet exhibits high uniaxial magnetocrystalline anisotropy energy and has a high Curie temperature. These are good properties for a permanent magnet, but YCo5 has a low energy product, which is notably insufficient for a permanent magnet. In order to improve the energy product in YCo5, we suggest replacing cobalt with iron, which has a much bigger magnetic moment. With a combination of density-functional-theory calculations and thermodynamic CALculation of PHAse Diagrams (CALPHAD) modeling, we show that a new magnet, YFe3(Ni1-xCox)2, is thermodynamically stable and exhibits an improved energy product without significant detrimental effects on the magnetocrystalline anisotropy energy or the Curie temperature.

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“…In the case of the first magnetic phase (shown in red color), at least a tri-modal distribution can be observed with an average hyperfine field of 9.09 T; whereas for the second phase (shown in black color) the distribution is bi-modal with an average hyperfine field value of 25.7 T. Due to the substantial chemical and topological inhomogeneity of the Fe65Nb5Y10B20 alloy, an additional high-field component-described by two sextets with relatively wide lines-was isolated. The distribution of the hyperfine field obtained for these lines may suggest that they may belong to the Fe5Y crystalline phase [27]. However, their width is too large, and they must be treated as clustered structures-similar to the ordering of the Fe5Y crystalline phase.…”

Section: Methodsmentioning

confidence: 94%

The Process of Magnetizing FeNbYHfB Bulk Amorphous Alloys in Strong Magnetic Fields

et al. 2020

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The structure of amorphous alloys still has not been described satisfactorily due to the lack of direct methods for observing structural defects. The magnetizing process of amorphous alloys is closely related to its disordered structure. The sensitivity of the magnetization vector to any heterogeneity allows indirect assessment of the structure of amorphous ferromagnetic alloys. In strong magnetic fields, the magnetization process involves the rotation of a magnetization vector around point and line defects. Based on analysis of primary magnetization curves, it is possible to identify the type of these defects. This paper presents the results of research into the magnetization process of amorphous alloys that are based on iron, in the areas called the approach to ferromagnetic saturation and the Holstein-Primakoff para-process. The structure of a range of specially produced materials was examined using X-ray diffraction. Primary magnetization curves were measured over the range of 0 to 2 T. The process of magnetizing all of the tested alloys was associated with the presence of linear defects, satisfying the relationship D di p < 1 H . It was found that the addition of yttrium, at the expense of hafnium, impedes the magnetization process. The alloy with an atomic content of Y = 10% was characterized by the highest saturation magnetization value and the lowest value of the D spf parameter, which may indicate the occurrence of antiferromagnetic ordering in certain regions of this alloy sample.produced in the form of thin ribbons, using the melt-spinning method [4], present particularly good properties. Materials of this type are characterized by a high value of saturation magnetization (above 1.5 T) and a low value of coercive field (approximately 1 A/m) [5][6][7][8][9]. These material samples are extremely easy to magnetize, partly due to their dimensions. Amorphous ribbons have thicknesses of up to several tens of µm. Unfortunately, these dimensions significantly limit the applications of these materials. The so-called bulk amorphous alloys comprise a relatively new group of promising materials. These materials are produced by a rapid-quenching process in copper molds. The most well-known production methods are the injection-and suction-casting methods [10,11]. In this way, at a cooling rate of 10 −1 -10 3 K/s, iron-based alloys with dimensions exceeding 10 mm can be produced [12][13][14]. However, due to their high proportions of non-magnetic component elements, such as: B, C, Zr, Y, Mo, Nb, Hf, or Cr, these alloys do not exhibit the best magnetic properties. A compromise that combines relatively good magnetic properties (saturation magnetization greater than1T, coercive field less than 50 A/m) with favorable alloy geometry (diameter up to 3 mm) exists in the form of alloys with a content of approximately 65%-75% magnetic elements [15][16][17][18].The process of magnetizing amorphous alloys does not differ significantly from their crystalline counterparts. Figure 1 shows a diagram of the primary magnetization cur...

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Magnetic properties of the hypothetical compound YFe5

Cited by 14 publications

References 13 publications

Effect of heat treatment on the shape of the hyperfine field induction distributions and magnetic properties of amorphous soft magnetic Fe₆₂Co₁₀Y₈B₂₀ alloy

Effect of heat treatment on the shape of the hyperfine field induction distributions and magnetic properties of amorphous soft magnetic Fe₆₂Co₁₀Y₈B₂₀ alloy

Thermodynamics and Magnetism of YCo5 Compound Doped with Fe and Ni: An Ab Initio Study

The Process of Magnetizing FeNbYHfB Bulk Amorphous Alloys in Strong Magnetic Fields

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Magnetic properties of the hypothetical compound YFe5

Cited by 14 publications

References 13 publications

Effect of heat treatment on the shape of the hyperfine field induction distributions and magnetic properties of amorphous soft magnetic Fe62Co10Y8B20 alloy

Effect of heat treatment on the shape of the hyperfine field induction distributions and magnetic properties of amorphous soft magnetic Fe62Co10Y8B20 alloy

Thermodynamics and Magnetism of YCo5 Compound Doped with Fe and Ni: An Ab Initio Study

The Process of Magnetizing FeNbYHfB Bulk Amorphous Alloys in Strong Magnetic Fields

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Effect of heat treatment on the shape of the hyperfine field induction distributions and magnetic properties of amorphous soft magnetic Fe₆₂Co₁₀Y₈B₂₀ alloy

Effect of heat treatment on the shape of the hyperfine field induction distributions and magnetic properties of amorphous soft magnetic Fe₆₂Co₁₀Y₈B₂₀ alloy