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a kind of fe 78 the si 9 b 13 Method for increasing saturation magnetization and reducing coercive force of amorphous crystals

A technology of magnetization and coercivity, which is used in inductor/transformer/magnet manufacturing, inorganic material magnetism, electrical components, etc., can solve problems such as poor temperature control, and achieve low cost, simple magnetic performance, and easy operation. row effect

Inactive Publication Date: 2017-12-05
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In the prior art, the general method of increasing the saturation magnetization of amorphous materials and reducing the coercive force is to perform heat treatment, but the disadvantage of this method is that the temperature is not easy to control

Method used

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  • a kind of fe <sub>78</sub> the si <sub>9</sub> b <sub>13</sub> Method for increasing saturation magnetization and reducing coercive force of amorphous crystals
  • a kind of fe <sub>78</sub> the si <sub>9</sub> b <sub>13</sub> Method for increasing saturation magnetization and reducing coercive force of amorphous crystals
  • a kind of fe <sub>78</sub> the si <sub>9</sub> b <sub>13</sub> Method for increasing saturation magnetization and reducing coercive force of amorphous crystals

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Embodiment 1

[0027] A kind of Fe 78 Si 9 B 13 The method for the rapid improvement of amorphous magnetic properties (saturation magnetization enhancement and coercive force reduction) comprises the following steps:

[0028] Step one, the Fe 78 Si 9 B 13 Cut the amorphous into strips with a length of a=5cm and a width of b=3mm, and put them into a sample bag as a spare sample.

[0029] Step 2, set the constant current of the power supply to 1.5A.

[0030] Step 3, the power cord is connected to both ends of the strip, and the timer is ready to count.

[0031] Step 4, turn on the power supply to pass the current, and start timing at the same time.

[0032] Step five, turn off the power when the power-on time reaches 100s, and remove the strip.

Embodiment 2

[0034] A kind of Fe 78 Si 9 B 13 The method for the rapid improvement of amorphous magnetic properties (saturation magnetization enhancement and coercive force reduction) comprises the following steps:

[0035] Step one, the Fe 78 Si 9 B 13 Cut the amorphous into strips with a length of a=5cm and a width of b=3mm, and put them into a sample bag as a spare sample.

[0036] Step 2, set the constant current of the power supply to 1.65A.

[0037] Step 3, the power cord is connected to both ends of the strip, and the timer is ready to count.

[0038] Step 4, turn on the power supply to pass the current, and start timing at the same time.

[0039] Step five, turn off the power when the power-on time reaches 100s, and remove the strip.

Embodiment 3

[0041] A kind of Fe 78 Si 9 B 13 The method for the rapid improvement of amorphous magnetic properties (saturation magnetization enhancement and coercive force reduction) comprises the following steps:

[0042] Step one, the Fe 78 Si 9 B 13 Cut the amorphous into strips with a length of a=5cm and a width of b=3mm, and put them into a sample bag as a spare sample.

[0043] Step 2, set the constant current of the power supply to 1.8A.

[0044] Step 3, the power cord is connected to both ends of the strip, and the timer is ready to count.

[0045]Step 4, turn on the power supply to pass the current, and start timing at the same time.

[0046] Step five, turn off the power when the power-on time reaches 100s, and remove the strip.

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Abstract

The invention discloses a method for increasing Fe78Si9B13 amorphous saturation magnetization intensity and lowering coercivity. The method includes: shearing a Fe78Si9B13 amorphous sample into strips, connecting power supply wires to two ends of each strip, setting the current of a power supply to be constant, setting the ratio of the current and the width of each strip to be 0.5-0.8A:1mm, electrifying for 90-100 seconds, and taking down the strip to obtain the Fe78Si9B13 amorphous strip with increased saturation magnetization intensity and lowered coercivity. By the method, the Fe78Si9B13 amorphous strips with high saturation magnetization intensity and low coercivity can be obtained simply, and are applicable to iron cores of transformers such as distribution transformers, medium-frequency transformers and the like.

Description

technical field [0001] The invention belongs to the field of functional materials, in particular to a 78 Si 9 B 13 A method for increasing the saturation magnetization and reducing the coercive force of amorphous crystals. Background technique [0002] Metallic glass (also known as amorphous alloy) is a new type of alloy material synthesized by rapid solidification gold, which has excellent mechanical, physical and chemical properties of general metal and glass. The "metal" in metallic glass refers to this material It is smelted from metal raw materials; "glass" refers to the structure of this material is a short-range order like a glass state, but does not have a long-range order structure. It does not refer to the usual glass. Generally speaking, during the solidification process, metals will change from a disordered state to an ordered state, and the atoms are arranged according to certain rules to form a crystal. But when the cooling rate is very large, the atoms ca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F1/03H01F41/00
Inventor 王伟民盛振华马海健姚福安
Owner SHANDONG UNIV
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