Preparation method of oxide ceramic particle enhanced Cu-based composite material

A technology of oxide ceramics and composite materials, which is applied in the field of metals and composite materials, can solve the problems of difficult formation of W skeleton, high Cu content, and difficult implementation of Cu-W alloy with high copper content, and achieve good comprehensive performance indicators and process The effect of simple process

Active Publication Date: 2020-11-27
HENAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these two preparation methods are difficult to implement in the preparation of high copper content Cu-W alloys
The reason is that, first, it is difficult to form a W skeleton because of the low W content, and second, due to the high Cu content, once a liquid phase sample is formed, it will collapse

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The preparation method of a kind of oxide ceramic particle reinforced Cu-based composite material according to the present invention adopts the technical scheme, and the specific method is:

[0033] Step 1. Select copper nitrate powder, ammonium metatungstate powder and aluminum nitrate (or zirconium nitrate) powder with a purity greater than 99.99% as raw materials, and calculate according to the weight ratio of Cu:W:Al2O3 (or ZrO2) controlled at 77:5:0.05 Get the required copper nitrate powder, ammonium metatungstate powder and aluminum nitrate (or zirconium nitrate) powder, and use a high-precision balance to weigh and set aside;

[0034] Step 2. Slowly add the aluminum nitrate (or zirconium nitrate), copper nitrate and ammonium metatungstate powders taken in step 1 into 3 beakers pre-added with deionized water, and the concentration is controlled at 1mol / L. Then put the beaker into the ultrasonic oscillator for ultrasonic vibration, and start the electric stirrer at...

Embodiment 2

[0042] The preparation method of a kind of oxide ceramic particle reinforced Cu-based composite material according to the present invention adopts the technical scheme, and the specific method is:

[0043] Step 1. Select copper nitrate powder, ammonium metatungstate powder and aluminum nitrate (or zirconium nitrate) powder with a purity greater than 99.99% as raw materials, and calculate by controlling the weight ratio of Cu:W:Al2O3 (or ZrO2) at 94.95:20:3 Get the required copper nitrate powder, ammonium metatungstate powder and aluminum nitrate (or zirconium nitrate) powder, and use a high-precision balance to weigh and set aside;

[0044] Step 2. Slowly add the aluminum nitrate (or zirconium nitrate), copper nitrate and ammonium metatungstate powders weighed in step 1 into three beakers pre-added with deionized water, and the concentration is controlled at 1.5mol / L , then put the beaker into an ultrasonic oscillator for ultrasonic vibration, and start the electric stirrer at...

Embodiment 3

[0052] The preparation method of a kind of oxide ceramic particle reinforced Cu-based composite material according to the present invention adopts the technical scheme, and the specific method is:

[0053] Step 1. Select copper nitrate powder, ammonium metatungstate powder and aluminum nitrate (or zirconium nitrate) powder with a purity greater than 99.99% as raw materials, and calculate according to the weight ratio of Cu:W:Al2O3 (or ZrO2) controlled at 85:15:1.5 Get the required copper nitrate powder, ammonium metatungstate powder and aluminum nitrate (or zirconium nitrate) powder, and use a high-precision balance to weigh and set aside;

[0054] Step 2. Slowly add the aluminum nitrate (or zirconium nitrate), copper nitrate and ammonium metatungstate powders weighed in step 1 into three beakers pre-added with deionized water, and the concentration is controlled at 1.25mol / L , then put the beaker into an ultrasonic oscillator for ultrasonic vibration, and simultaneously start...

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Abstract

The invention relates to an oxide ceramic particle enhanced Cu-based composite material and a preparation method thereof, and belongs to the field of composite materials. Aluminum nitrate (or zirconium nitrate), cupric nitrate and ammonium metatungstate are adopted as raw materials to prepare a solution with the certain concentration, and the solution is evenly mixed, a composite powder precursoris prepared through a whirlwind spray drying method, and an Al2O3-WO3-CuO mixed powder is obtained through roasting; and then after Al2O3-WO3-CuO is reduced through high-purity hydrogen, Al2O3-doped copper-tungsten composite powder is obtained, and the composite powder is subjected to vacuum hot-pressing sintering to prepare the Al2O3 ceramic particle enhanced Cu-based composite material, whereinZrO2-WO3-CuO mixed powder can also be used for obtaining ZrO2, and the effect of the ZrO2-WO3-CuO mixed powder is the same as the effect of Al2O3. The technological process is simple, and the preparedAl2O3 ceramic particle enhanced Cu-based composite material is uniform in component, fine and uniform in crystal particle, ultra low in impurity content and good in comprehensive performance index, can be used for harsh working conditions where power receiving, high temperature, abrasion and corrosion interact, is suitable for large-scale industrial production and has wide industrial applicationprospects.

Description

technical field [0001] The invention belongs to the field of metals and composite materials thereof, and in particular relates to a preparation method of oxide ceramic particles reinforced Cu-based composite materials. Background technique [0002] Metal copper (Cu) is one of the earliest metals used by humans. It has outstanding characteristics such as high thermal conductivity and electrical conductivity, good ductility, good corrosion resistance, and excellent formability, so it is widely used in cables and electrical and electronic components. , military armor-piercing weapons, electromagnetic gun tracks and other fields. However, with the rapid development of science and technology, the use of metal copper is becoming wider and wider, and the requirements for its use are getting higher and higher. A single metal copper has been difficult to meet the development needs of human beings. Under this background, various copper alloys or copper-based composite materials have ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/05C22C1/10C22C9/00B22F3/14B22F9/22
CPCB22F3/14B22F9/22C22C1/05C22C9/00
Inventor 李秀青魏世忠杨晴霞徐流杰周玉成张敏杰张国赏毛丰陈冲张程熊美潘昆明
Owner HENAN UNIV OF SCI & TECH
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