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Amorphous nanocrystalline magnetically soft alloy and preparation method thereof

An amorphous nanocrystalline and soft magnetic alloy technology, applied in the field of new amorphous nanocrystalline soft magnetic alloy and its preparation, can solve the problem of high cost, achieve high saturation magnetization, surface quality without voids, and excellent bending toughness.

Inactive Publication Date: 2014-11-05
UNIV OF SHANGHAI FOR SCI & TECH
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] Most of the amorphous thin strips with good magnetic properties currently on the market are obtained by annealing the thin strips to obtain amorphous nanocrystalline alloys to improve their magnetic properties, but the cost of this method is very high

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  • Amorphous nanocrystalline magnetically soft alloy and preparation method thereof
  • Amorphous nanocrystalline magnetically soft alloy and preparation method thereof
  • Amorphous nanocrystalline magnetically soft alloy and preparation method thereof

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Embodiment Construction

[0024] The following combination Figure 1~Figure 3 The present invention will be described in detail, but this embodiment does not limit the content of the present invention.

[0025] figure 1 Is a flow chart of the method of the present invention;

[0026] figure 2 Is the XRD diffraction pattern of the present invention;

[0027] image 3 It is the M-H map of the present invention.

[0028] The amorphous nanocrystalline soft magnetic alloy and the preparation method thereof of the present invention are characterized in that there are some nanocrystalline particles on the amorphous substrate, thereby obtaining excellent soft magnetic properties. By controlling the high vacuum single-roll spin quenching process parameters and adjusting the chemical composition, an amorphous nanocrystalline soft magnetic alloy with excellent soft magnetic properties can be directly obtained without annealing.

[0029] The present invention is achieved through the following technical solutions, and the...

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Abstract

The invention relates to an amorphous nanocrystalline magnetically soft alloy and a preparation method of the magnetically soft alloy. The amorphous nanocrystalline magnetically soft alloy comprises the following chemical components in percentage by atom: 39-44 of Fe, 39-44 of Co, 0-4 of Al, 0.6-1.5 of Mo, 5.5-7.4 of Zr, 3.6-5.5 of B and 0.5-1.4 of Cu. Compared with traditional iron-based amorphous, nanocrystalline magnetically soft alloys and the like, the amorphous nanocrystalline magnetically soft alloy has the advantages that a precious metal Nb is replaced by cheap Al, and simultaneously, a part of precious metal B is replaced by cheap Zr; an amorphous nanocrystalline ribbon in a quenching state is obtained by particularly adjusting the chemical components and optimizing a belt technology; a complicated annealing process is omitted, and the cost of amorphous nanocrystalline soft magnetic material is greatly reduced. The amorphous nanocrystalline magnetically soft alloy is simple in technology, low in cost and easy to industrialize; the obtained product has high saturation induction intensity, so that the magnetically soft alloy can be used for national defense and civilian industry products such as a distribution transformer, a motor magnetic core and a high-power switching power supply.

Description

Technical field [0001] The invention relates to an amorphous and nanocrystalline alloy, in particular to a novel amorphous nanocrystalline soft magnetic alloy and a preparation method thereof. Background technique [0002] Fe-based amorphous and nanocrystalline alloys are widely used in microelectronics, machinery, power engineering and other fields due to their excellent soft magnetic properties and corrosion resistance. For example, the traditional Finemet amorphous nanocrystalline alloy has excellent soft magnetic properties and has partially replaced silicon steel sheet as the core material of power transformers, but its application has been greatly restricted due to its high raw material cost and high manufacturing process cost. [0003] From the perspective of application, compared with bulk amorphous alloys, amorphous alloy ribbons have a simpler preparation process and can be mass-produced. Therefore, amorphous ribbons with excellent comprehensive magnetic properties will c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C45/02C22C45/04C22C1/03C22C1/04H01F1/153
Inventor 李翔孙皓潘登
Owner UNIV OF SHANGHAI FOR SCI & TECH
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