Method and device for preparing nanoparticle reinforced aluminum base composite material

A composite material and a technology for reinforcing aluminum matrix, which is used in the field of control of the melt reaction synthesis process of aluminum matrix composite materials, can solve the problems of not fully exerting the advantages of electromagnetic fields, and achieves improved thermodynamic conditions, obvious stirring effect, and inhibition of cluster aggregation. growing effect

Active Publication Date: 2011-01-26
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the coupling of a single magnetic field and an ultrasonic field does not give full play to the advantages of the elect

Method used

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  • Method and device for preparing nanoparticle reinforced aluminum base composite material
  • Method and device for preparing nanoparticle reinforced aluminum base composite material
  • Method and device for preparing nanoparticle reinforced aluminum base composite material

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0023] Example 1: Preparation (Al 3 Zr (s) +Al 2 O 3(s) )Particle reinforced aluminum matrix composite

[0024] Raw material: base metal: industrial pure aluminum; solid powder: industrial zirconium carbonate (Zr(CO 3 ) 2 ) Powder (purity 99.20%), refining degassing agent and slagging agent;

[0025] In-situ reaction equation: 13Al (1) +3Zr(CO 3 ) 2(s) = 3Al 3 Zr (s) +2Al 2 O 3(s) +6CO 2 ↑

[0026] Particle reinforcement phase: Al 3 Zr (s) And Al 2 O 3(s)

[0027] The preparation process is as follows:

[0028] (1) First, metal smelting and powder preparation:

[0029] Industrial pure aluminum 10Kg is melted in a 25kW crucible resistance furnace and heated to 850°C, degassed and slagging. All reagents used are fully dried at 250℃~300℃, among which Zr(CO 3 ) 2 Grind into fine powder (particle size less than 100μm), weigh it and use it, Zr(CO 3 ) 2 The added weight is 10% of the metal weight.

[0030] (2): Preparation of composite material melt under the combination of multiple magnetic fi...

Embodiment 2

[0035] Example 2: Preparation of Al 2 O 3(s) Particle reinforced aluminum matrix composite

[0036] Raw material: base metal: industrial pure aluminum; solid powder: industrial cerium carbonate (Ce 2 (CO 3 ) 3 ) Powder (purity 99.20%), refining degassing agent and slagging agent;

[0037] In-situ reaction equation: 4Al+3CeO 2 →2Al 2 O 3 +3Ce

[0038] Particle reinforcement phase: Al 2 O 3(s)

[0039] The preparation process is as follows:

[0040] (1) First, metal smelting and powder preparation:

[0041] Industrial pure aluminum 10Kg is melted in a 25kW crucible resistance furnace and heated to 850℃, degassed and slagging. All reagents used are fully dried at 250 DEG C to 300 DEG C. The cerium carbonate is ground into fine powder (with a particle size of less than 100 μm), which is weighed for use. The added weight of cerium carbonate is 10% of the metal weight.

[0042] (2): Preparation of composite material melt under the combination of multiple magnetic fields:

[0043] After the melt...

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Abstract

The invention provides a method and a device for preparing a nanoparticle reinforced aluminum base composite material, and relates to the technical field of particle reinforced aluminum base composite material preparation. The method and the device are characterized in that: a combination electromagnetic field is formed by a high frequency magnetic field and a low frequency magnetic field; and the combination electromagnetic field and an ultrasonic field are coupled and applied to a melt reaction synthetic process of an in-situ particle reinforced aluminum base composite material so as to synthesize the endogenous nanoparticle reinforced metal base composite material under the action of coupling the double-frequency combination electromagnetic field and the high-energy ultrasonic field. The method and the device overcome the defects that only the electromagnetic field or the ultrasonic field is applied, and the single electromagnetic field is coupled with the ultrasonic field; and under the action of coupling the combination electromagnetic field and the ultrasonic field, a reinforced phase is refined to nanoscale, the shape of the particles is rounded off, the bonding strength of the particles and a substrate is improved, particle dispersion is facilitated, and the comprehensive performance of the composite material is improved.

Description

Technical field [0001] The invention relates to the technical field of preparation of particle-reinforced aluminum-based composite materials, in particular to a new method for controlling the melt reaction synthesis process of aluminum-based composite materials by using a coupled external field formed by a combined electromagnetic field and an ultrasonic field. Background technique [0002] Particle-reinforced metal matrix composites have good mechanical and physical and chemical properties due to their composite structural characteristics. They have broad application prospects in the fields of advanced electrical and electronic devices, aerospace vehicles, machinery, bridge and tunnel engineering, etc., and have become One of the research hotspots of metal matrix composites. With the deepening of research, particle-reinforced aluminum matrix composites are gradually becoming a new type of material with more and more applications. At present, the melt reaction synthesis method i...

Claims

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Application Information

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IPC IPC(8): C22C32/00C22C21/00C22C1/02B22D27/00
Inventor 赵玉涛王宏明李桂荣陈刚张松利
Owner JIANGSU UNIV
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