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High-volume-fraction particle reinforcement aluminum matrix composite and preparation method thereof

A particle-reinforced aluminum, high volume fraction technology, applied in the field of metal alloy material casting, can solve the problems of blind size selection, achieve high elastic modulus and strength, good temperature creep resistance, and ensure the effect of service life

Inactive Publication Date: 2017-09-05
SUZHOU NETABHAPE COMPOSITE MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is still a lack of systematic research on the impact of particle size on performance, and the choice of size is still relatively blind

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A particle-reinforced aluminum-based composite material with a high volume fraction, comprising the following components, the mass fraction percent of which is: silicon dioxide 5.9wt.%, silicon carbide 26.2wt.%, aluminum oxide 5.2wt.%, iron 1.2 wt.%, titanium 0.2wt.%, copper 1.1wt.%, tin oxide 0.1wt.%, lanthanum oxide 0.2wt.%, and the balance is aluminum.

[0025] A method for preparing a high volume fraction particle reinforced aluminum matrix composite material, comprising the following steps:

[0026] (1) Add tin oxide and lanthanum oxide into absolute ethanol, the m / v is 1:10, put them in a ball mill, after they are uniformly dispersed, add cationic surfactant, and ultrasonicate for 1 hour;

[0027] (2) Place the ultrasonically treated system in step (1) in an oven at 40°C to remove absolute ethanol;

[0028] (3) Melt pure aluminum, add silicon dioxide and silicon carbide when it is half melted, and keep it warm at 690°C for 30 minutes;

[0029] (4) After adding a...

Embodiment 2

[0034] A particle-reinforced aluminum-based composite material with a high volume fraction, comprising the following components, the mass fraction percent of which is: silicon dioxide 7.2wt.%, silicon carbide 28.5wt.%, aluminum oxide 6.7wt.%, iron 1.8 wt.%, titanium 0.5wt.%, copper 1.8wt.%, tin oxide 0.3wt.%, lanthanum oxide 0.4wt.%, and the balance is aluminum.

[0035] A method for preparing a high volume fraction particle reinforced aluminum matrix composite material, comprising the following steps:

[0036] (1) Add tin oxide and lanthanum oxide into absolute ethanol, the m / v is 1:13, put them in a ball mill, after they are evenly dispersed, add a cationic surfactant, and ultrasonicate for 2 hours;

[0037] (2) Place the ultrasonically treated system in step (1) in an oven at 45°C to remove absolute ethanol;

[0038] (3) Melt pure aluminum, add silicon dioxide and silicon carbide when it is half melted, and keep it warm at 712°C for 40 minutes;

[0039] (4) After adding a...

Embodiment 3

[0044] A particle-reinforced aluminum-based composite material with a high volume fraction, comprising the following components, the mass fraction percent of which is: silicon dioxide 9.7wt.%, silicon carbide 30.8wt.%, aluminum oxide 7.8wt.%, iron 2.7 wt.%, titanium 0.9wt.%, copper 2.5wt.%, tin oxide 0.6wt.%, lanthanum oxide 0.6wt.%, and the balance is aluminum.

[0045] A method for preparing a high volume fraction particle reinforced aluminum matrix composite material, comprising the following steps:

[0046] (1) Add tin oxide and lanthanum oxide into absolute ethanol, the m / v is 1:18, put them in a ball mill, after they are uniformly dispersed, add a cationic surfactant, and ultrasonicate for 3 hours;

[0047] (2) Place the ultrasonically treated system in step (1) in an oven at 50°C to remove absolute ethanol;

[0048] (3) Melt pure aluminum, add silicon dioxide and silicon carbide when it is half melted, and keep it warm at 738°C for 55 minutes;

[0049] (4) After addin...

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Abstract

The invention discloses a particle-reinforced aluminum-based composite material with a high volume fraction and a preparation method thereof, which comprises the following components, the mass fraction percentages of which are: silicon dioxide 5.9-11.3wt.%, silicon carbide 26.2-32.5wt.%. , aluminum oxide 5.2-8.9wt.%, iron 1.2-3.5wt.%, titanium 0.2-1.2wt.%, copper 1.1-3.9wt.%, tin oxide 0.1-0.9wt.%, lanthanum oxide 0.2-0.8 wt.%, the balance is aluminum. The particle volume fraction in the high volume fraction particle reinforced aluminum-based composite material of the present invention is more than 30%; the composite material of the present invention has high elastic modulus and strength, good temperature creep resistance, and good wear resistance property; the composite material of the present invention can effectively avoid interfacial peeling (debonding), matrix damage, etc., thereby ensuring the service life of the composite material.

Description

technical field [0001] The invention belongs to the field of metal alloy material casting, and relates to a particle-reinforced aluminum alloy, in particular to a high-volume-fraction particle-reinforced aluminum-based composite material and a preparation method thereof. Background technique [0002] In order to fully develop and utilize the potential properties of particle reinforced metal matrix composites and to design materials correctly, the failure mechanism of materials and its influencing factors should be understood first. The strength and failure of composite materials are closely related to components, interfaces and their random defects, and there is no exact mechanical model and corresponding laws. Specifically, matching, process, interface and matrix will affect the macroscopic strength properties of composite materials; interfacial peeling (Debonding), matrix failure and other local damages are very likely to lead to premature failure of the composite structur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/00C22C32/00C22C1/10C22F1/04
CPCC22C21/00C22C1/1005C22C1/1036C22C1/1094C22C32/0047C22F1/04
Inventor 刘莉王爽邱晶刘晓东黄明明
Owner SUZHOU NETABHAPE COMPOSITE MATERIALS
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