Composite material with nano silicon carbide granulate strengthening aluminium base and mfg. process thereof

A nano-silicon carbide and particle-reinforced aluminum technology is applied in the field of silicon carbide-reinforced aluminum-based composite materials and preparation, and can solve the problems of inhomogeneous distribution of nano-scale reinforcement particles, high cost, complicated preparation process, etc., and achieves improved mechanical properties and cost. The effect of low and simple preparation process

Inactive Publication Date: 2006-06-28
HARBIN INST OF TECH
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  • Abstract
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  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the nano-scale reinforcing particles cannot be evenly distributed in the aluminum matrix in the traditional method for preparing particl...

Method used

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Effect test

specific Embodiment approach 1

[0005] Specific Embodiment 1: In this embodiment, the nano-silicon carbide particle-reinforced aluminum-based composite material is made of nano-silicon carbide particles and aluminum powder as raw materials; wherein the volume of nano-silicon carbide particles accounts for 0.5% to 20% of the volume of the raw material, and the volume of the aluminum powder It accounts for 80-99.5% of the raw material volume.

specific Embodiment approach 2

[0006] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the nano-silicon carbide particle-reinforced aluminum matrix composite material consists of nano-silicon carbide particles accounting for 1-15% of the raw material volume and aluminum accounting for 85-99% of the raw material volume. made from powder.

specific Embodiment approach 3

[0007] Embodiment 3: The difference between this embodiment and Embodiment 1 is that the nano-silicon carbide particle-reinforced aluminum matrix composite material is made of nano-silicon carbide particles accounting for 3% of the raw material volume and aluminum powder accounting for 97% of the raw material volume.

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PUM

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Abstract

The invention relates to nanometer silicon carbide granule reinforcing aluminum base composite material and its manufacturing method. It solves the defect of uneven granule distribution, complex manufacturing technology, and high cost in traditional method. The nanometer silicon carbide granule reinforcing aluminum base composite material is made up of nanometer silicon carbide granule and aluminum powder. The former volume is 0.5-20%. The latter is 80-99.5%. The manufacturing method includes the following steps: mixing the raw material; putting into sealed ball milling pot; pumping vacuum; repeating for 2-20 times; high energy ball milling; hot pressing sintering; and hot pressing. The invention has the advantages of simple technology, low cost, even granule distribution, and high powder manufacturing efficiency. And it can obviously increase the mechanical property of the composite material.

Description

technical field [0001] The invention relates to a silicon carbide reinforced aluminum matrix composite material and a preparation method. Background technique [0002] The traditional method of preparing particle-reinforced aluminum matrix composites cannot uniformly distribute nano-scale reinforcement particles in the aluminum matrix, and the preparation process is complicated, the cost is high, and it is not easy to popularize and apply. Contents of the invention [0003] The purpose of the present invention is to solve the problem that the nano-scale reinforcing particles cannot be evenly distributed in the aluminum matrix in the traditional method for preparing particle-reinforced aluminum-based composite materials, the preparation process is complicated, and the cost is high, and a nano-silicon carbide particle-reinforced aluminum Composite materials and their preparation methods. Nano-silicon carbide particles reinforced aluminum matrix composites are made of nano-s...

Claims

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Application Information

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IPC IPC(8): C22C45/08C22C1/05
Inventor 耿林曹国剑曲寿江郑镇洙
Owner HARBIN INST OF TECH
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