WO1992009714A1 - Iron-base soft magnetic alloy - Google Patents
Iron-base soft magnetic alloy Download PDFInfo
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- WO1992009714A1 WO1992009714A1 PCT/JP1991/001677 JP9101677W WO9209714A1 WO 1992009714 A1 WO1992009714 A1 WO 1992009714A1 JP 9101677 W JP9101677 W JP 9101677W WO 9209714 A1 WO9209714 A1 WO 9209714A1
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- magnetic alloy
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- 229910001004 magnetic alloy Inorganic materials 0.000 title claims abstract description 70
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 197
- 229910052742 iron Inorganic materials 0.000 claims abstract description 45
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 7
- 239000006104 solid solution Substances 0.000 claims description 10
- 229910052748 manganese Inorganic materials 0.000 claims description 5
- 229910052721 tungsten Inorganic materials 0.000 claims description 5
- 229910052720 vanadium Inorganic materials 0.000 claims description 5
- 229910052804 chromium Inorganic materials 0.000 claims description 4
- 229910052750 molybdenum Inorganic materials 0.000 claims description 4
- 229910052698 phosphorus Inorganic materials 0.000 claims description 4
- 229910052715 tantalum Inorganic materials 0.000 claims description 4
- 229910052727 yttrium Inorganic materials 0.000 claims description 4
- 229910052735 hafnium Inorganic materials 0.000 claims description 3
- 229910052726 zirconium Inorganic materials 0.000 claims description 3
- 239000002178 crystalline material Substances 0.000 claims description 2
- 229910052763 palladium Inorganic materials 0.000 claims description 2
- 229910052719 titanium Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 abstract description 47
- 229910045601 alloy Inorganic materials 0.000 abstract description 46
- 230000035699 permeability Effects 0.000 abstract description 42
- 229910000808 amorphous metal alloy Inorganic materials 0.000 abstract description 17
- 229910052782 aluminium Inorganic materials 0.000 abstract description 4
- 230000005389 magnetism Effects 0.000 abstract description 4
- 229910008423 Si—B Inorganic materials 0.000 abstract description 3
- 239000000843 powder Substances 0.000 abstract description 2
- 239000010409 thin film Substances 0.000 abstract description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 1
- 239000010955 niobium Substances 0.000 abstract 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 abstract 1
- 230000005291 magnetic effect Effects 0.000 description 124
- 238000010438 heat treatment Methods 0.000 description 53
- 239000013078 crystal Substances 0.000 description 37
- 239000011162 core material Substances 0.000 description 26
- 239000000203 mixture Substances 0.000 description 24
- 230000000052 comparative effect Effects 0.000 description 15
- 230000004907 flux Effects 0.000 description 15
- 238000002441 X-ray diffraction Methods 0.000 description 14
- 238000010586 diagram Methods 0.000 description 14
- 238000002425 crystallisation Methods 0.000 description 13
- 230000008025 crystallization Effects 0.000 description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 10
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 8
- 239000010949 copper Substances 0.000 description 8
- 229910001873 dinitrogen Inorganic materials 0.000 description 8
- 229910052796 boron Inorganic materials 0.000 description 7
- 238000005096 rolling process Methods 0.000 description 7
- 229910052710 silicon Inorganic materials 0.000 description 7
- 230000005284 excitation Effects 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000002184 metal Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 229910052786 argon Inorganic materials 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 230000001747 exhibiting effect Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 230000005415 magnetization Effects 0.000 description 4
- 229910000859 α-Fe Inorganic materials 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000696 magnetic material Substances 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 238000010791 quenching Methods 0.000 description 3
- 230000000171 quenching effect Effects 0.000 description 3
- 210000003323 beak Anatomy 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 229910052732 germanium Inorganic materials 0.000 description 2
- 125000005843 halogen group Chemical group 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 230000005307 ferromagnetism Effects 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000005300 metallic glass Substances 0.000 description 1
- 229910052752 metalloid Inorganic materials 0.000 description 1
- 150000002738 metalloids Chemical class 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
- H01F1/147—Alloys characterised by their composition
- H01F1/153—Amorphous metallic alloys, e.g. glassy metals
- H01F1/15308—Amorphous metallic alloys, e.g. glassy metals based on Fe/Ni
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C45/00—Amorphous alloys
- C22C45/02—Amorphous alloys with iron as the major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
Definitions
- the present invention relates to an Fe-based soft magnetic alloy, and more particularly to an Fe-based soft magnetic alloy having excellent soft magnetic properties.
- Fe-based amorphous magnetic alloys having a high saturation magnetic flux density are widely known as core materials such as high-frequency transformers, saturable reactors, and choke coils.
- core materials such as high-frequency transformers, saturable reactors, and choke coils.
- Fe-based amorphous magnetic alloys are less expensive than C0-based alloys, they generally suffer from high saturation magnetostriction and high core loss, and low magnetic permeability.
- the present invention is a soft magnetic material which is not sufficient in terms of practicality (economical efficiency) and is an alternative to such a conventional soft magnetic material, and has extremely small saturation magnetostriction and excellent high frequency characteristics.
- An object of the present invention is to provide a novel Fe-based soft magnetic alloy having excellent magnetic permeability and iron loss particularly in a high frequency range.
- Another object of the present invention is to provide a Fe-based soft magnetic alloy which is a metal metalloid alloy having a relatively low melting point and which can be manufactured by using a conventional magnetic material manufacturing apparatus.
- F e based soft magnetic alloy of the present invention have the general formula (F e i-xMx ..- a one b -.
- M is C o and or N i, M 'is from N b, Mo, Z r, W, Ta, H f, T i, V, Cr, Mn, Y, P d, Ru, Ga, Ge, C, P X represents atomic ratio, a, b, c, d represent atomic%, 0 ⁇ x ⁇ 0.15, 0 ⁇ a ⁇ 2 4 2 ⁇ b ⁇ 1 5, 4 ⁇ c ⁇ 20 N 0 ⁇ d ⁇ 10), and at least 30% or more of the structure is crystalline (fine crystal grains).
- the crystalline material is a bcc solid solution mainly composed of iron, and Nb is suitable as M '.
- copper (Cu) is 0.5 atomic% or less, preferably 0.1 atomic% or less, and most preferably contains no Cu. Better not.
- Fe can be substituted with Co, Z or Ni when the atomic ratio x is in the range of 0 to 0.15. Since Co and Ni show a negative interaction parameter with Fe, they dissolve in the Fe-based bcc solid solution generated when heat-treating the Fe-based soft magnetic alloy of the present invention, and have a bcc structure. It is considered to be replaced by a lattice. It is thought that this can reduce the magnetostriction constant and the magnetocrystalline anisotropy constant of the bcc solid solution.
- the content X of N i (and / or C o) is preferably 0.02 x ⁇ 0.15, more preferably 0.03 ⁇ x ⁇ 0.1.
- a 1 This is an essential element of the alloy of the present invention.
- a 1 in a specific amount (more than 2 atomic% and not more than 15 atomic%), a soft magnetic crystal with small crystal magnetic anisotropy (Fe based
- the temperature difference ( ⁇ ) between the crystallization temperature of the bcc solid solution (TXJ) and the crystallization temperature (TX 2 ) of the crystal that inhibits soft magnetism (eg, Fe-B type crystal) can be increased.
- the soft magnetic properties by heat treatment at a relatively low temperature.
- Figure 1 shows the case where A1 is added to the FeSiB-based alloy. The relationship between the crystallization temperature of A and the amount of A 1 (atomic%) was shown.
- the content b of A1 is more than 2 atomic% and not more than 15 atomic%, preferably 2.5 to 15 atomic%, more preferably 3 to 12 atomic%. In the range of 3 to 12 atomic%, an alloy having particularly high magnetic permeability and small iron loss can be obtained.
- the content b of A 1 is preferably 6 to 12 atomic%, more preferably 6 to 10 atomic%. %, Most preferably 7 to 10 atomic%.
- Si and B are elements that make the Fe-based soft magnetic alloy of the present invention amorphous in an initial state (before heat treatment).
- the content a of Si is 0 to 24 atomic%, preferably 6 to 18 atomic%, more preferably 10 to 16 atomic%. It is preferable that the content of S i be in this range because the ability to form an amorphous phase in the initial state (before heat treatment) can be increased.
- the content c of B is 4 to 20 atomic%, preferably 6 to 15 atomic%, and more preferably 10 to 14 atomic%. Sufficient crystallization within this range This is preferable because a temperature difference can be obtained and an amorphous state is easily formed.
- the content c of B is 4 to 20 atomic%, preferably 6 to 15 atomic%, and more preferably 10 to 14 atomic%. Sufficient crystallization within this range This is preferable because a temperature difference can be obtained and an amorphous state is easily formed.
- Amorphous forming ability differs at a B content of 9 atomic% as a boundary.
- B is in the range of 9.5 to 15 atomic%, particularly 10 to 14 atomic%, A The alloy has excellent ability to form an amorphous phase and uniform crystal grains can be obtained after heat treatment.
- the basic composition of the Fe-based soft magnetic alloy of the present invention is the above-mentioned Fe (M), B, Si, and A1, but another element M 'is added to further improve corrosion resistance and magnetic properties. be able to.
- M ′ is selected from Nb, Mo, Zr, W, Ta, Hf, Ti, V, Cr, Mn, Y, Pd, Ru, Ga, Ge, and CP 1 Species or more. Further, the addition of M 'has a function of improving the amorphous forming ability of the Fe-Si-A1-1B alloy having the basic composition.
- Nb, W, Ta, Zr, Hf, and Mo particularly suppress the precipitation of Fe-B-based crystals that inhibit soft magnetic properties, or increase the precipitation temperature of Fe-B-based crystals.
- the addition of the above elements (metals) contributes to the refinement of crystal grains.
- V, Cr, Mn, Y and Ru are particularly effective in improving the corrosion resistance of the alloy.
- C, Ge, P and Ga are particularly effective in forming amorphous.
- One or more of the above elements can be added. Of these elements, Nb, Ta, W, Mn, Mo, and V are particularly preferable.
- the soft magnetic properties, especially the coercive force, the magnetic permeability, and the iron loss are remarkably improved.
- the addition amount d of these elements is 1 to 10 atomic%, preferably 1 to 8 atomic%, and more preferably 1 to 6 atomic%. By setting it in this range, it is possible to prevent the ability to form an amorphous phase and the magnetic properties from deteriorating.
- an alloy containing unavoidable impurities such as N, S, and 0 to such an extent that desired characteristics are not deteriorated is also included in the present invention.
- the Fe-based magnetic alloy of the present invention at least 30% or more (30% to 100%) of the entire structure is composed of crystalline (fine crystal grains), and the portion of the alloy composition other than the crystal grains is included. Is mainly amorphous.
- excellent (soft) magnetic properties are exhibited when the proportion of crystal grains is in the above range.
- excellent ( ⁇ ) magnetic properties are exhibited even when the ratio of fine crystal grains is substantially 100%.
- it is particularly preferable that at least 60% or more of the entire structure is composed of fine crystal grains, and that 80% or more is fine. Most preferably it consists of crystal grains.
- the crystal grains of the alloy of the present invention have a bcc structure, and Si, B, and A 1 (and possibly Ni and / or Co) are present as a solid solution mainly with Fe. It is P the grains 1 0 0 0 angstroms or less, preferred properly 5 0 0 angstroms or less, more preferred properly have an average particle size of 5 0-3 0 0 Ongusu Toromu. In the present invention, excellent magnetic properties can be obtained because the average particle diameter is not more than 100 ⁇ . In the present invention, the ratio of crystal grains to the whole can be experimentally evaluated by an X-ray diffraction method or the like. That is, a completely crystallized state
- the ratio of the X-ray diffraction intensity of the magnetic alloy material to be measured to this can be experimentally evaluated. It can also be evaluated from the ratio of the X-ray diffraction intensity of the X-ray diffraction line that is small due to crystallization and the X-ray diffraction intensity due to the halo characteristic of amorphous which decreases with crystallization.
- the Fe-based soft magnetic alloy of the present invention is obtained by forming an amorphous alloy having the above composition by a liquid quenching method that generally forms an amorphous metal from a molten metal having the above composition, for example, a single roll method, a capitation method, a sputtering method, or a vapor deposition method. After being formed into a ribbon, powder, fiber, fiber, or thin film, the obtained amorphous alloy is processed into a predetermined shape as required, and then heat-treated, and at least a part of the alloy is preferably used. Is obtained by crystallizing 30% or more of the whole sample.
- a quenched ribbon is simply formed by a roll method, formed into a predetermined shape such as a wound core, and then heat-treated.
- Heat treatment such as vacuum or argon gas scan or nitrogen gas an inert gas, a reducing gas or air such as H 2 This is performed in an oxidizing gas atmosphere such as air. It is preferably performed in a vacuum or in an inert gas atmosphere.
- the heat treatment temperature is about 200 to 800 ° C., preferably about 400 to 700 ° C., and more preferably about 52 to 68 ° C.
- the heat treatment time is about 0.1 to 10 hours, preferably about 1 to 5 hours.
- the heat treatment may be performed in the absence of a magnetic field or by applying a magnetic field.
- a soft magnetic alloy excellent in the characteristics of the present invention can be obtained by heat-treating the amorphous alloy having the above composition in the above-mentioned temperature range and for the heat treatment time in the above-mentioned range.
- FIG. 1 is a diagram showing the relationship between the crystallization temperature of Fe-based soft magnetic alloy and the amount of A1.
- Figure 2 shows the correlation between the coercive force (H e) and the composition of the Fe-based magnetic alloy.
- Figure 3 shows the correlation between the saturation magnetism (M s) and the composition of the Fe-based magnetic alloy.
- FIG. 4 shows X-ray diffraction patterns of an amorphous alloy and a crystalline alloy of the Fe-based soft magnetic alloy according to the present invention.
- FIG. 5 is a diagram showing the temperature dependence of the magnetic flux density and coercive force of the magnetic core of the Fe-based soft magnetic alloy according to the present invention.
- FIG. 6 is a diagram showing the temperature dependence of the effective magnetic permeability of the magnetic core of the Fe-based soft magnetic alloy according to the present invention.
- FIG. 7 is a diagram showing the temperature dependence of iron loss of the magnetic core of the Fe-based magnetic alloy according to the present invention.
- FIG. 8 is a diagram showing the temperature dependence of the crystal grain size and lattice constant of the bcc crystal of the Fe-based magnetic alloy according to the present invention.
- FIG. 9 is a diagram showing the temperature dependence of the saturation magnetostriction of the Fe-based soft magnetic alloy according to the present invention.
- FIG. 10 shows the Fe-based soft magnetic alloy according to the present invention.
- FIG. 6 is a diagram illustrating frequency characteristics of actual magnetic permeability of a magnetic core.
- FIG. 11 is a diagram showing frequency characteristics of iron loss of the magnetic core of the Fe-based soft magnetic alloy according to the present invention.
- FIG. 12 is a diagram showing the magnetic flux density dependence of iron loss of the magnetic core of the Fe-based soft magnetic alloy according to the present invention.
- FIG. 13 is a graph showing the frequency characteristics of the effective magnetic permeability of the magnetic core of the Fe-based soft magnetic alloy according to the present invention.
- FIG. 14 is a diagram showing frequency characteristics of iron loss of the magnetic core of the Fe-based magnetic alloy according to the present invention.
- FIG. 15 is a diagram showing a BH curve before heat treatment of the Fe-based soft magnetic alloy according to the present invention.
- FIG. 16 is a diagram showing a BH curve after heat treatment in a magnetic field of the Fe-based magnetic alloy according to the present invention.
- FIG. 17 is a diagram showing each X-ray diffraction pattern of an amorphous alloy and a crystalline alloy of the Fe-based soft magnetic alloy according to the present invention.
- a melt containing Fe, Si, Al, B, and (Nb) is about 1.0 to 5 mm wide and about 14 to 2 mm thick in a 1-atmosphere atmosphere of argon gas.
- a quenched ribbon of 0 m was prepared and used as a sample. This sample was heat-treated in the presence of nitrogen gas without a magnetic field for about 1 hour.
- samples were prepared by changing the composition of Fe, Si, A1, B, and Nb, heat-treated at the optimum temperature for about 1 hour, and then cooled in a nitrogen stream.
- the coercive force Hc (mOe) and saturation magnetization Ms (emu / g) of each sample after the heat treatment were measured.
- the composition was determined by ICP analysis.
- the iron loss of the wound core after heat treatment was determined at a frequency of 100 kHz and a maximum magnetic flux density of 0.1 T.
- the permeability was determined from the area surrounding the AC hysteresis sieve measured using a digital oscilloscope, and the permeability was set at a frequency of 100 kHz and an exciting magnetic field of 5 mni.
- Fig. 2 shows the composition dependence of the coercive force Hc of the FeSiA1B alloy.In the composition range enclosed by the line, good soft magnetic characteristics with a coercive force of 100 mOe or less were obtained. Indicated.
- FIG. 3 is a diagram showing the composition dependence of the saturation magnetization M s of the FeSiA1B alloy, where the high coercivity Hc is within the composition range of 100 mOe or less.
- a sample Fe 73 Si 8 A 1 10 B 9 ) showing 16.5 emu / g was obtained. Among them, the coercive force was higher than that of the conventional Fe Si B amorphous alloy (Comparative Example 1).
- Table 2 The numerical values in Table 2 indicate that the ⁇ values of Examples 4 and 7 are significantly larger than Comparative Example 2. Also, as is clear from Table 2, it was confirmed that the alloy of the present invention was crystallized by heat treatment to form crystal grains of a bcc solid solution of about 300 angstroms mainly composed of iron. Was done.
- the first crystallization temperature ⁇ is the temperature at which these Fe-based magnetic alloys can be manufactured using a conventional heat treatment apparatus, and the difference from the second crystallization temperature TX 2 is also the same as in Example 4. 95 and 125 in Example 7 (and 30 in Comparative Example 2), and it was shown that by appropriately selecting the heat treatment temperature, the generation of a crystal that inhibits ferromagnetism can be sufficiently suppressed.
- a wound magnetic core having an inner diameter of 15 mm, an outer diameter of 19 ⁇ , and a height of 2.8 mm was prepared from a thin strip of the alloy of Example 9 (Fe 66 Si 14 Al 8 Nb 3 B 9 ), and was formed in a nitrogen gas atmosphere.
- the magnetic flux density B 10 As is apparent from the figure that the value of about 0. 7 T in the range of heat treatment temperature at 5 50 ° C ⁇ 6 7 0 are obtained. Also, the coercive force H c reaches a minimum value of 12m0e at 580 ° C, and then increases with the heat treatment temperature.
- FIG. 6 and 7 show the dependence of the effective magnetic permeability e on the heat treatment temperature and the iron loss (100 KHz, 0. IT) of the wound core at each measurement frequency.
- the effective magnetic permeability e reaches a maximum value at 580 ° C in the low-frequency region (1 O KHz or less), and then gradually decreases as the heat treatment temperature rises.
- the high frequency region 100 kHz or more
- the temperature at which the maximum value is reached also moves to the higher temperature side. See also Figure 7
- the iron loss showed a good value of about 10 W / kg in the range of the heat treatment temperature of 580 ° (: up to 670 ° C.).
- the crystal grain size D110 (angstrom) and bcc derived from the half-width of the ( 110 ) diffraction intensity beak of the bcc crystal of the alloy of Example 9 heat-treated in a nitrogen gas atmosphere for 1 hour using the Schuller equation Figure 8 shows the dependence of the lattice constant a (angstrom) on the heat treatment temperature determined from the (110) diffraction peak of the crystal. As is evident from Fig. 8, the crystal grain size was about 140 angstroms regardless of the increase in the heat treatment temperature. On the other hand, it was found that the lattice constant gradually decreased as the heat treatment temperature increased.
- FIG. 10 shows the frequency characteristics of the effective magnetic permeability e for those obtained.
- FIG. 10 also shows the frequency characteristics of the effective magnetic permeability of the alloys of Comparative Examples 1 and 2 and a typical Mn—Zn ferrite. As shown in the figure, it was found that the alloy of the present invention exhibited higher magnetic permeability than the conventional amorphous alloy (Comparative Example 1) and the Mn—Zn ferrite.
- the alloy of the present invention is a novel microcrystalline / magnetic alloy exhibiting excellent magnetic properties in a high frequency region.
- FIGS. 11 and 12 show the frequency dependence and the magnetic flux density dependence of the iron loss of the alloys of Comparative Examples 1 and 2 and the typical Mn—Zn ferrite.
- an amorphous ribbon with a width of 1.311111 and a thickness of 18 ⁇ 111 was obtained from a melt containing Fe, Si, Al, B, and Nb in an atmosphere of 1 atmosphere of argon gas.
- a sample was prepared.
- the ribbon was wound into a wound core with an inner diameter of 15 mm, an outer diameter of 19 mm, and a height of 1.3 mm.
- Table 3 shows the composition and results of each sample.
- Example 10 Fe 6 gSi 1 2 Al 7 Nb 3 B 9
- Example 11 Fe 6 sSi 12AI 8 Nb 3 B 9
- Example 12 Fe 6 7S1 12Al 9 Nb 3 B 9
- Example 13 Fe 6 eSi i 2 Al 10 Nb 3 B 9
- example 14 Fe 6 sSi 1 3 Al 7 Nb 3 B 9
- Example 10 In the same manner as in Example 10, a sample of an amorphous ribbon (Fe-Si-Al-B-Nb) having a width of 2.8 mm and a thickness of 18 was prepared. mm, an outer diameter of 19 mra, and a height of 2.8 mm, and after performing optimal heat treatment in the absence of a magnetic field, the effective magnetic permeability ⁇ (frequency 100 kHz, excitation magnetic field 5 m 0 e) and And iron loss (frequency 100 kHz, maximum magnetic flux density 0.1 T). Table 4 shows the composition and results of each sample. As is clear from Table 4, the amorphous alloy having a B content of more than 9 atomic% has a small iron loss and a high magnetic permeability.
- an amorphous ribbon of 1.3 mm in width and 18 ⁇ m in thickness was prepared from a melt containing Fe, Si, Al, B, and M in an atmosphere of 1 atmosphere of argon gas.
- the coercive force H c (mOe) and the effective Permeability; (frequency 100 kHz, excitation magnetic field 5 m 0 e) and iron loss (frequency 100 kHz, maximum magnetic flux density 0.1 T) were determined. Table 5 shows the composition and results of each sample. Paper No, Coercive force UnOe) Effective permeability Iron loss (Vkg)
- Example 10 a sample of an amorphous ribbon (Fe-Si-Al-B-Nb) having a width of 1.3 mm and a thickness of 18 m was prepared. mm, an outer diameter of 19, and a height of 1.3 ⁇ .
- the effective magnetic permeability (frequency 100 k ⁇ ⁇ , exciting magnetic field 5 m 0 e) and iron Loss (frequency 100 kHz, maximum magnetic flux density 0.1 T) was determined. each Table 6 shows the sample composition and results.
- Example 10 a sample of an amorphous ribbon (Fe-Mi-Si-Al-Nb-B) having a width of 2.8 mm and a thickness of 18 was prepared. Then, a core wound with an inner diameter of 15 mm, an outer diameter of 19 mm, and a height of 2.8 mm was subjected to an optimal heat treatment in the absence of a magnetic field, and the core was further heat-treated in a magnetic field.
- the effective magnetic permeability ⁇ before and after the heat treatment in a magnetic field (frequency 100 k ⁇ ⁇ , excitation magnetic field 5 m 0 e) and iron loss (frequency 100 kHz, maximum magnetic flux density 0.1 I T) were determined. Table 7 shows the composition and results of each sample.
- Example 69 Further, the frequency dependence of the effective magnetic permeability and iron loss was measured for the magnetic cores of Example 69 after the heat treatment without magnetic field ( ⁇ ) and after the heat treatment in the magnetic field (Hata). The results are shown in FIGS. 13 and 14. The BH curves at the excitation magnetic fields H ml 00 e, 10 e and 0.10 e are shown in FIG. 15 and FIG.
- the alloy of the present invention was able to obtain a large magnetic permeability in a high frequency region of 100 kHz or more by performing the heat treatment in a magnetic field.
- the value obtained by magnetic field heat treatment of a 5 mm wide and 18 thick ribbon of a microcrystalline soft magnetic alloy (Comparative Example 2) exhibiting good frequency characteristics was obtained from the value obtained by magnetic field heat treatment ( ⁇ ). High magnetic permeability was also obtained.
- the iron loss value of the alloy of the present invention can be significantly reduced by performing heat treatment in a magnetic field.
- This value is based on the iron obtained by performing a magnetic field heat treatment on a 5 mni wide and 18 # m thick ribbon of Comparative Example 2. It was lower than the loss value ( ⁇ ).
- the alloy of the present invention was subjected to heat treatment in a magnetic field. It showed excellent soft magnetic properties.
- the X-ray diffraction pattern after heat treatment for 1 hour in the nitrogen gas atmosphere of Example 69 is shown in Fig.
- Example 17 and the width of A-o Examples 82 to 86 is the same as that of Example 10.
- a sample of an amorphous ribbon (Fe-Co-Si-Al-Nb-B) with a thickness of 8 mm and a thickness of 18 m was prepared. After making a 2.8 mm wound core and performing optimal heat treatment in the absence of a magnetic field, the wound core was further heat treated in a magnetic field.
- the effective permeability ⁇ (frequency 100 k ⁇ ⁇ , excitation magnetic field 5 m 0 e) and iron loss (frequency 100 kHz, maximum magnetic flux density 0.1 T) before and after heat treatment in a magnetic field were determined. Table 8 shows the composition and results of each sample. 8
- the permeability was lower than that containing Ni, but the iron loss was as small as that containing Ni. 9 In all Examples, the content ratio of crystalline (fine crystal grains)
- the Fe-based soft magnetic alloy of the present invention A 1 is added to the Fe—Si—B-based alloy. As a result, a novel Fe-based soft magnetic alloy having excellent soft magnetic properties can be obtained.
- the Fe-based soft magnetic alloy of the present invention has a large temperature difference between the crystallization temperature of a crystal exhibiting good soft magnetism and the crystallization temperature of a crystal that inhibits soft magnetic properties. A sufficiently large heat treatment temperature range can be obtained compared to the temperature range. Further, according to the Fe-based magnetic alloy of the present invention, by adding A 1 and partially substituting Fe with Ni (Co), Very low magnetostriction A magnetic core with low iron loss can be obtained.
- the present invention by adding an element such as Nb to the Fe—Si—A 1 —B system alloy, excellent ferromagnetic properties, particularly, extremely low coercive force, low iron loss, and low magnetostriction can be obtained.
- an element such as Nb to the Fe—Si—A 1 —B system alloy.
- excellent ferromagnetic properties particularly, extremely low coercive force, low iron loss, and low magnetostriction can be obtained.
- a novel Fe-based soft magnetic alloy having high magnetic permeability in a high frequency region can be obtained.
- the alloy of the present invention has excellent soft magnetic properties as described above, it is used in, for example, high-frequency transformers, common-mode choke coils, magnets, inductors for filters, signal transformers, magnetic heads, and the like. Magnetic core material).
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Dispersion Chemistry (AREA)
- Power Engineering (AREA)
- Soft Magnetic Materials (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP91920808A EP0513385B1 (en) | 1990-11-30 | 1991-11-29 | Iron-base soft magnetic alloy |
KR1019920701773A KR950014314B1 (ko) | 1990-11-30 | 1991-11-29 | Fe기 연자성합성 |
CA002074805A CA2074805C (en) | 1990-11-30 | 1991-11-29 | Fe-base soft magnetic alloy |
DE69124691T DE69124691T2 (de) | 1990-11-30 | 1991-11-29 | Weichmagnetlegierung auf eisen-basis |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP33445290 | 1990-11-30 | ||
JP2/334452 | 1990-11-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1992009714A1 true WO1992009714A1 (en) | 1992-06-11 |
Family
ID=18277548
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1991/001677 WO1992009714A1 (en) | 1990-11-30 | 1991-11-29 | Iron-base soft magnetic alloy |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0513385B1 (ja) |
KR (1) | KR950014314B1 (ja) |
CA (1) | CA2074805C (ja) |
DE (1) | DE69124691T2 (ja) |
WO (1) | WO1992009714A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN117026103A (zh) * | 2023-08-08 | 2023-11-10 | 中南大学 | 一种高强高电阻低电阻温度系数的多组元软磁合金及其制备方法和应用 |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5466304A (en) * | 1994-11-22 | 1995-11-14 | Kawasaki Steel Corporation | Amorphous iron based alloy and method of manufacture |
JP3904250B2 (ja) * | 1995-06-02 | 2007-04-11 | 独立行政法人科学技術振興機構 | Fe系金属ガラス合金 |
DE69711599T2 (de) * | 1996-01-11 | 2002-10-31 | Honeywell International Inc., Morristown | Elektrischer drossel mit verteilte spalt |
DE69823756T2 (de) * | 1997-08-28 | 2005-04-14 | Alps Electric Co., Ltd. | Verfahren zum Sintern einer glasartige Eisenlegierungen |
US6258185B1 (en) * | 1999-05-25 | 2001-07-10 | Bechtel Bwxt Idaho, Llc | Methods of forming steel |
US6689234B2 (en) | 2000-11-09 | 2004-02-10 | Bechtel Bwxt Idaho, Llc | Method of producing metallic materials |
US7541909B2 (en) | 2002-02-08 | 2009-06-02 | Metglas, Inc. | Filter circuit having an Fe-based core |
CN102982955B (zh) * | 2012-03-05 | 2015-03-11 | 宁波市普盛磁电科技有限公司 | 一种铁硅软磁粉末及其制备方法 |
CA2778865A1 (en) * | 2012-05-25 | 2013-11-25 | Hydro-Quebec | Alloys of the type fe3aita(ru) and use thereof as electrode material for the synthesis of sodium chlorate |
CN103969488B (zh) * | 2013-01-31 | 2017-09-29 | 西门子公司 | 电流互感器及其电流检测电路 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56158833A (en) * | 1980-05-12 | 1981-12-07 | Matsushita Electric Ind Co Ltd | Wear resistant alloy |
JPH01241200A (ja) * | 1988-03-23 | 1989-09-26 | Hitachi Metals Ltd | 電磁シールド材料 |
JPH02170950A (ja) * | 1989-09-11 | 1990-07-02 | Tdk Corp | 非晶質磁性合金材料 |
JPH02236259A (ja) * | 1989-03-09 | 1990-09-19 | Hitachi Metals Ltd | 恒透磁率性に優れた合金およびその製造方法 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4405368A (en) * | 1981-05-07 | 1983-09-20 | Marko Materials, Inc. | Iron-aluminum alloys containing boron which have been processed by rapid solidification process and method |
-
1991
- 1991-11-29 WO PCT/JP1991/001677 patent/WO1992009714A1/ja active IP Right Grant
- 1991-11-29 CA CA002074805A patent/CA2074805C/en not_active Expired - Fee Related
- 1991-11-29 DE DE69124691T patent/DE69124691T2/de not_active Expired - Lifetime
- 1991-11-29 KR KR1019920701773A patent/KR950014314B1/ko not_active Expired - Lifetime
- 1991-11-29 EP EP91920808A patent/EP0513385B1/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56158833A (en) * | 1980-05-12 | 1981-12-07 | Matsushita Electric Ind Co Ltd | Wear resistant alloy |
JPH01241200A (ja) * | 1988-03-23 | 1989-09-26 | Hitachi Metals Ltd | 電磁シールド材料 |
JPH02236259A (ja) * | 1989-03-09 | 1990-09-19 | Hitachi Metals Ltd | 恒透磁率性に優れた合金およびその製造方法 |
JPH02170950A (ja) * | 1989-09-11 | 1990-07-02 | Tdk Corp | 非晶質磁性合金材料 |
Non-Patent Citations (1)
Title |
---|
See also references of EP0513385A4 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN117026103A (zh) * | 2023-08-08 | 2023-11-10 | 中南大学 | 一种高强高电阻低电阻温度系数的多组元软磁合金及其制备方法和应用 |
Also Published As
Publication number | Publication date |
---|---|
DE69124691T2 (de) | 1997-06-19 |
CA2074805A1 (en) | 1992-05-31 |
KR950014314B1 (ko) | 1995-11-24 |
EP0513385B1 (en) | 1997-02-12 |
DE69124691D1 (de) | 1997-03-27 |
KR920703866A (ko) | 1992-12-18 |
CA2074805C (en) | 2001-04-10 |
EP0513385A4 (en) | 1993-05-05 |
EP0513385A1 (en) | 1992-11-19 |
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