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Fe-Ni-Nd type alloy wave-absorbing micro powder and preparation method thereof

A fe-ni-nd, micro-powder technology, applied in the field of alloy absorbing micro-powder materials, can solve the problems of low absorbing efficiency, narrow absorbing bandwidth, and high material density.

Inactive Publication Date: 2017-05-10
杨欣睿
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these microwave absorbers still have shortcomings such as narrow absorbing bandwidth, low absorbing efficiency and high material density, so the application range is limited to a certain extent.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] According to Fe, Ni, Nd single substance 2 Ni 15 Nd 2 The atomic ratio of ingredients is 5g. After the ingredients are mixed, the mixture is smelted in a vacuum electric arc furnace. After smelting once, the reverse side is smelted again. After the melting is uniform, the alloy ingot is taken out and put into a quartz glass tube. , through the tube sealing process, seal the glass tube into a low vacuum state. After sealing, put the glass tube into water to check whether it is well sealed. If no bubbles come out, it indicates that the seal is good. Take out the glass tube, wipe it clean, The glass tube is placed in a high-temperature furnace for homogenization treatment. The temperature is set at 600°C. After annealing for 12 days, the glass tube is put into a mixture of ice and water for quenching. After cooling, the alloy ingot is removed, and the dust layer on the surface is removed. Carry out mechanical crushing, collect the crushed powder, pour the powder into a b...

Embodiment 2

[0021] According to Fe, Ni, Nd single substance 7 Ni 8 Nd 2 The atomic ratio of ingredients is 10g. After the ingredients are mixed, the mixture is smelted in a vacuum electric arc furnace. After smelting once, it is reversed and smelted once again. After the melting is uniform, the alloy ingot is taken out and put into a quartz glass tube. , through the tube sealing process, seal the glass tube into a low vacuum state. After sealing, put the glass tube into water to check whether it is well sealed. If no bubbles come out, it indicates that the seal is good. Take out the glass tube, wipe it clean, The glass tube is placed in a high-temperature furnace for homogenization treatment. The temperature is set at 600°C. After 13 days of annealing treatment, the glass tube is put into a mixture of ice and water for quenching. After cooling, the alloy ingot is taken out, and the dust layer on the surface is removed. Carry out mechanical crushing, collect the crushed powder, pour the ...

Embodiment 3

[0023] According to Fe, Ni, Nd single substance 15 Ni 2 Nd 2 The atomic ratio of ingredients is 15g. After the ingredients are mixed, the mixture is smelted in a vacuum electric arc furnace. After smelting once, it is reversed and smelted again. After the melting is uniform, the alloy ingot is taken out and put into a quartz glass tube. , through the tube sealing process, seal the glass tube into a low vacuum state. After sealing, put the glass tube into water to check whether it is well sealed. If no bubbles come out, it indicates that the seal is good. Take out the glass tube, wipe it clean, The glass tube is placed in a high-temperature furnace for homogenization treatment. The temperature is set at 600°C. After annealing for 15 days, the glass tube is put into a mixture of ice and water for quenching. After cooling, the alloy ingot is removed, and the dust layer on the surface is removed. Carry out mechanical crushing, collect the crushed powder, pour the powder into a b...

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PUM

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Abstract

The invention discloses Fe-Ni-Nd type alloy wave-absorbing micro powder. According to the wave-absorbing micro powder, Fe, Ni and Nd serve as raw materials, burdening is conducted according to the atomic ratio of Fe<x>Ni<17-x>Nd<2>, wherein the x is larger than or equal to 2 and smaller than or equal to 15, the Fe, the Ni and the Nd are subjected to the steps of smelting, pipe sealing, high-temperature homogenization treatment, ice-water mixture quenching and the like sequentially, finally, ball milling and airing are conducted, and the high-performance alloy micro powder material can be obtained.

Description

technical field [0001] The invention relates to an alloy microwave-absorbing micropowder material, in particular to an iron-based alloy microwave-absorbing micropowder added with rare earth Nd and a preparation method thereof. Background technique [0002] With the rapid development of military high-tech, stealth technology is increasingly important for aircraft stealth. At the same time, with the widespread use of electronic equipment, electromagnetic radiation is becoming more and more serious, making microwave-absorbing materials more and more widely used in military and civilian applications. [0003] Excellent microwave absorbing materials not only require high microwave absorption rate, but also strong absorption frequency bandwidth and other properties. Microwave absorbing materials commonly used at home and abroad mainly include micro and ultrafine magnetic metal and alloy powder absorbing materials, ferrite absorbing materials and conductive polymer absorbing mater...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F1/00B22F9/04
CPCB22F1/0003B22F9/04B22F2009/043
Inventor 杨欣睿
Owner 杨欣睿