High Bs FeSiBPCu Nanocrystalline Wide Ribbons Using Industrial Raw Materials

2010 ◽  
Vol 654-656 ◽  
pp. 1102-1105 ◽  
Author(s):  
Akiri Urata ◽  
Hiroyuki Matsumoto ◽  
Shigeyoshi Yoshida ◽  
Akihiro Makino
Keyword(s):  
Raw Materials ◽  
Nanocrystalline Structure ◽  
Nanocrystalline Alloys ◽  
Magnetic Alloy ◽  
Soft Magnetic ◽  
Soft Magnetic Alloy ◽  
Material Cost ◽  
Economical Advantage

Nanocrystalline Fe-Si-B-P-Cu wide ribbons, with 15-30mm width, using industrial raw materials have been investigated. A homogeneous nanocrystalline structure composed of α-Fe grains with around 10 nm in diameter was realized after crystallization and the nanocrystalline alloys exhibit the high Bs of 1.74-1.82 T, the low Hc of 6.5-7.2 A/m and the low W at 50Hz-1.7T of 0.42-0.60W/kg. Therefore, the nanocrystalline Fe-Si-B-P-Cu soft magnetic alloy has a large economical advantage of low material cost by using industrial raw materials.

New Fe-B-P-Cu Nanocrystalline Soft Magnetic Alloys with High Js Combined with Low Coercivity Hc

2012 ◽  
Vol 508 ◽  
pp. 99-105
Author(s):  
Ze Qiang Zhang ◽  
Parmanand Sharma ◽  
Akihiro Makino
Keyword(s):  
Raw Materials ◽  
Nanocrystalline Structure ◽  
Nanocrystalline Alloy ◽  
Amorphous Structure ◽  
Magnetic Alloy ◽  
Soft Magnetic ◽  
Soft Magnetic Alloy ◽  
Air Atmosphere ◽  
Fe Content ◽  
Magnetic Softness

Fe-Si-B Amorphous Alloys with Less than 80 at% Fe Are now in Practical Use due to their Excellent Magnetic Softness (Low Coercivity Hc) Combined with Rather High Saturation Magnetic Polarization (Js) which Basically Owing to the Lack of Intrinsic Magnetic Anisotropy and the High Fe Content, Respectively. In Order to Obtain High Js, High Fe Content Is Required. However, Alloys with High Fe Content Exceeding the Limit Usually Have the as-Quenched Structure Consisting of Coarse α-Fe Grains in the Amorphous Matrix, which Results in Inferior Magnetic Softness. We Have Developed a New Fe85.2B10P4Cu0.8 Nanocrystalline Soft Magnetic Alloy Ribbon (with 5 mm in Width and about 20 µm in Thickness) Made from Industrial Raw Materials in Air Atmosphere. The as-Quenched Structure of Fe85.2B10P4Cu0.8 Alloy Has Heterogeneous Amorphous Structure (a Large Amount of Extremely Small α-Fe Clusters in Addition to Amorphous Phase). Homogeneous Nanocrystalline Structure Composed of α-Fe Grains with a Size ~19 nm Was Realized by Crystallizing the Hetero-Amorphous Alloy. The Nanocrystalline Alloy Exhibit High Js ~ 1.83 T (Comparable to the Commercial Fe-3.5 Mass% Si Steel) and Extremely Low Hc ~ 6.0 A/m. Additionally the Alloy Has a Large Economical and Industrial Advantage of Lower Material Cost and Good Reproductivity, which Has a High Potential for the Power Applications.

Investigation of (Fe,Co)NbB-Based Nanocrystalline Soft Magnetic Alloys by Lorentz Microscopy and Off-Axis Electron Holography

2014 ◽  
Vol 21 (2) ◽  
pp. 498-509 ◽  
Author(s):  
Changlin Zheng ◽  
Holm Kirmse ◽  
Jianguo Long ◽  
David E. Laughlin ◽  
Michael E. McHenry ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Fine Particles ◽  
Magnetic Domain ◽  
Nanocrystalline Alloys ◽  
Electron Holography ◽  
Magnetic Alloy ◽  
Soft Magnetic ◽  
Wall Width ◽  
Lorentz Microscopy ◽  
Soft Magnetic Alloy

AbstractThe relationship between microstructure and magnetic properties of a (Fe,Co)NbB-based nanocrystalline soft magnetic alloy was investigated by analytical transmission electron microscopy (TEM). The microstructures of (Fe0.5Co0.5)80Nb4B13Ge2Cu1 nanocrystalline alloys annealed at different temperatures were characterized by TEM and electron diffraction. The magnetic structures were analyzed by Lorentz microscopy and off-axis electron holography, including quantitative measurement of domain wall width, induction, and in situ magnetic domain imaging. The results indicate that the magnetic domain structure and particularly the dynamical magnetization behavior of the alloys strongly depend on the microstructure of the nanocrystalline alloys. Smaller grain size and random orientation of the fine particles decrease the magneto-crystalline anisotropy and suggests better soft magnetic properties which may be explained by the anisotropy model of Herzer.

Research on Motor with Nanocrystalline Soft Magnetic Alloy Stator Cores

2019 ◽  
Vol 139 (10) ◽  
pp. 873-879 ◽  
Author(s):  
Tsuyoshi Nonaka ◽  
Shingo Zeze ◽  
Shogo Makino ◽  
Motomichi Ohto
Keyword(s):  
Magnetic Alloy ◽  
Soft Magnetic ◽  
Soft Magnetic Alloy ◽  
Nanocrystalline Soft Magnetic Alloy

NILOMAG 77

Alloy Digest ◽  
1995 ◽  
Vol 44 (10) ◽  
Keyword(s):  
Physical Properties ◽  
Tensile Properties ◽  
Heat Treating ◽  
Initial Permeability ◽  
Magnetic Alloy ◽  
Soft Magnetic ◽  
Soft Magnetic Alloy ◽  
High Level

Abstract NILOMAG ALLOY 77 is a 77 Ni soft magnetic alloy with a high level of initial permeability. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on heat treating. Filing Code: Ni-488. Producer or source: Inco Alloys International Inc.

MUMETAL

Alloy Digest ◽  
1991 ◽  
Vol 40 (12) ◽  
Keyword(s):  
Physical Properties ◽  
Tensile Properties ◽  
Heat Treating ◽  
Magnetic Alloy ◽  
High Permeability ◽  
Soft Magnetic ◽  
Soft Magnetic Alloy ◽  
Very High ◽  
Specialty Metals

Abstract MUMETAL is a very high permeability soft magnetic alloy. (See also Alloy Digest Ni-25, April 1956.) This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on heat treating. Filing Code: Ni-398. Producer or source: Spang Specialty Metals.

FERROPERM

Alloy Digest ◽  
1993 ◽  
Vol 42 (4) ◽  
Keyword(s):  
Fracture Toughness ◽  
High Temperature ◽  
Physical Properties ◽  
Saturation Magnetization ◽  
Pure Iron ◽  
Magnetic Alloy ◽  
High Saturation Magnetization ◽  
High Temperature Annealing ◽  
Soft Magnetic ◽  
Soft Magnetic Alloy

Abstract Ferroperm is a soft magnetic alloy that contains 1% aluminum. This addition of aluminum combined with high-temperature annealing increases permeability and reduces coercivity without decreasing the high-saturation magnetization of pure iron. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as fracture toughness. It also includes information on forming. Filing Code: FE-99. Producer or source: NKK Corporation.

SUPRA 50

Alloy Digest ◽  
2017 ◽  
Vol 66 (8) ◽  
Keyword(s):  
Physical Properties ◽  
Tensile Properties ◽  
Heat Treating ◽  
Magnetic Alloy ◽  
Soft Magnetic ◽  
Soft Magnetic Alloy

Abstract SUPRA 50 is a soft magnetic alloy with close to 50% nickel. It typically runs 47.5 Ni; 0.5 Mn, 0.1 Si; and 0.005 C This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on forming and heat treating. Filing Code: Fe-167. Producer or source: Lamineries Matthey SA.

Preparation of high performance soft magnetic alloy Fe-4Si-0.8P by metal injection molding

2017 ◽  
Vol 28 (10) ◽  
pp. 2687-2693 ◽  
Author(s):  
Zhiyuan Sun ◽  
Mingli Qin ◽  
Rui Li ◽  
Jidong Ma ◽  
Fei Fang ◽  
...  
Keyword(s):  
Injection Molding ◽  
High Performance ◽  
Metal Injection Molding ◽  
Magnetic Alloy ◽  
Soft Magnetic ◽  
Soft Magnetic Alloy

Role of Silicon in PM Processed Soft Magnetic Alloy

2010 ◽  
Vol 307 ◽  
pp. 13-19
Author(s):  
Deepika Sharma ◽  
Kamlesh Chandra ◽  
Prabhu Shankar Misra
Keyword(s):  
High Temperature ◽  
Atmospheric Oxygen ◽  
Hydrogen Atmosphere ◽  
Soft Magnetic Materials ◽  
Magnetic Alloy ◽  
Soft Magnetic ◽  
Soft Magnetic Alloy ◽  
Cold Shortness ◽  
Powder Particles

Iron-Phosphorus based soft magnetic materials are known for their hot and cold shortness. The present investigation deals with the development of high-density Fe-P based alloys in the form of very thin sheets (0.1mm) by proper soaking of them at a high temperature so as to eliminate Iron-Phosphide eutectic and bring the phosphorus entirely into solution in the iron. It has also been possible to eliminate the use of a hydrogen atmosphere during sintering by using carbon to form CO gas within the compact by reaction with the oxygen of the iron powder particles. A glassy ceramic coating applied over the compact serves as a protective coating in order to avoid atmospheric oxygen attack over the compact held at high temperature. The Fe-0.3wt% P- 0.4wt% Si alloy so formed yielded coercivities as low as 0.42 Oe, resistivities as high as 28.4 µΩcm and total losses as low as 0.132 W/Kg. Such a combination of properties may make the alloy suitable for application in magnetic relays and transformer cores.

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