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Magnesium alloy diatomite ferric oxide composite material and preparation method thereof

A composite material and iron oxide technology, applied in the field of magnesium alloy diatomite iron oxide composite material and its preparation method and its preparation, can solve the problems of poor wave-absorbing performance and complicated process, and achieve low production cost and simple preparation process , The effect of superior wave-absorbing performance

Inactive Publication Date: 2011-01-12
淮安市清河区科技转化服务中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this invention, 3-20% by volume of electroless nickel-plated short carbon fibers are added to the magnesium matrix. Although the matrix is ​​strengthened and the damping performance is endowed with better performance, its damping performance is better than that of pure magnesium, which can reach High damping range of 0.015, but the process is more complicated
The disadvantage of this material is poor absorbing performance

Method used

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  • Magnesium alloy diatomite ferric oxide composite material and preparation method thereof
  • Magnesium alloy diatomite ferric oxide composite material and preparation method thereof
  • Magnesium alloy diatomite ferric oxide composite material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0028] The preparation process of the magnesium alloy-based diatomite iron oxide composite material of the present invention:

[0029] Preparation of diatomaceous earth iron oxide complex: put ferric chloride and ferrous ammonium sulfate into a hydrothermal container with Teflon lining, add water to dissolve (add a small amount of water to achieve dissolution), and keep the container temperature at 80 -90°C, then add diatomite, the size of diatomite particles is 0.5mm, stir the above materials for 2-7min, the weight ratio of ferric chloride, ferrous ammonium sulfate and diatomite is 1:1:1 , after the stirring is completed, place the stirring material in an oven at 220°C for 3 hours and then cool naturally to obtain the diatomite iron oxide compound;

[0030] Then dolomite and diatomite iron oxide compound are mixed, the size of dolomite particle is 0.01-0.06mm, the weight ratio of diatomite iron oxide compound and dolomite is 1:0.05, and the size of dolomite particle is 0.01mm...

Embodiment 2

[0034] Preparation of diatomaceous earth iron oxide complex:

[0035] When preparing the diatomite iron oxide composite, the weight ratio of ferric chloride, ammonium ferrous sulfate and diatomite is 1:1:2, and the particle size of diatomite is 0.9mm.

[0036] When preparing the composite preform, the weight ratio of diatomite iron oxide composite to dolomite is 1:0.09, and the size of dolomite particles is 0.06mm;

[0037] Preparation of magnesium alloy liquid: according to weight percentage, Al is 8%, Th is 0.05%, Si is 1%, Sb is 0.01%, and the rest is Mg for batching, and is melted into alloy liquid at a temperature of 680-720°C;

[0038] The preparation process is the same as that in Example 1, and the volume percentage of the alginate iron oxide composite in the composite material is controlled to be 40%.

Embodiment 3

[0040] Preparation of diatomaceous earth iron oxide complex:

[0041] When forming diatomite iron oxide complex, the weight ratio of ferric chloride, ammonium ferrous sulfate and diatomite is 1:1:1.5, and the particle size of diatomite is 0.7mm.

[0042] When preparing the composite preform, the weight ratio of diatomite iron oxide composite to dolomite is 1:0.06, and the size of dolomite particles is 0.05mm;

[0043]Preparation of magnesium alloy liquid: according to weight percentage, Al is 7%, Th is 0.04%, Si is 0.8%, Sb is 0.008%, and the rest is Mg for batching; it is melted into alloy liquid at a temperature of 680-720°C;

[0044] The preparation process is the same as that in Example 1, and the volume percentage of the alginate iron oxide composite in the composite material is controlled to be 45%.

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Abstract

The invention provides a magnesium alloy diatomite ferric oxide composite material and a preparation method thereof. The composite material has high microwave-absorbing performance and excellent damping performance. The preparation method has simple process and low production cost and is suitable for industrialized production. The composite material takes a magnesium alloy as a substrate, a diatomite ferric oxide compound is distributed on the substrate, the diatomite ferric oxide compound is 40-45 percent by volume of the composite material, and grainsize of each diatomite ferric oxide compound particle is 0.5-1mm; the magnesium alloy substrate is prepared from the following chemical components in percentage by weight: 3-8 percent of Al, 0.01-0.05 percent of Th, 0.5-1 percent of Si, 0.005-0.01 percent of Sb and the balance of Mg; and the diatomite ferric oxide compound is formed by filling ferric oxide in gaps of diatomite, and a film is formed on each gap wall surface.

Description

1. Technical field [0001] The invention belongs to the field of metal materials, and relates to a magnesium alloy diatomite iron oxide composite material and a preparation method thereof. 2. Background technology [0002] At present, in the field of materials, the wave-absorbing and vibration-reducing effect of materials has been paid attention to. [0003] CN200410023374.1 relates to an aluminum-based wave-absorbing material and its preparation method, which is characterized in that: the surface layer of an aluminum or aluminum alloy plate is formed by a one-step or two-step anodic oxidation method of direct current or alternating current to form a porous aluminum oxide film to form an aluminum-based porous oxide film Aluminum template, that is, AAO template; use DC or pulse current electrochemical deposition to assemble magnetic nano-metal wire arrays in aluminum-based AAO porous membranes to make aluminum-based absorbing materials for in-situ assembly of magnetic nanowire...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C23/00C22C1/00
Inventor 王玲赵浩峰何美琴
Owner 淮安市清河区科技转化服务中心
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