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In-situ nano TiC ceramic particle reinforced copper based composite material and preparation method thereof

A technology of ceramic particles and composite materials, applied in the field of new in-situ nano-TiC ceramic particles reinforced copper or copper alloy matrix composite materials and its preparation, to achieve the effect of pure surface, less impurity content and high bonding strength

Active Publication Date: 2011-11-16
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, there is no report on the preparation of in-situ nano-TiC ceramic particles reinforced copper or copper alloy matrix composites by using combustion synthesis chemical reaction method and hot pressing technology in the world.

Method used

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  • In-situ nano TiC ceramic particle reinforced copper based composite material and preparation method thereof
  • In-situ nano TiC ceramic particle reinforced copper based composite material and preparation method thereof
  • In-situ nano TiC ceramic particle reinforced copper based composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A copper-based composite material reinforced with nano-TiC ceramic particles is prepared, which is composed of TiC28 and Cu72 according to weight percentage.

[0033] Take Cu powder, Ti powder and carbon nanotube ingredients. Wherein, the ratio of Cu powder, Ti powder and carbon nanotubes is 72.0:22.4:5.6 by weight. The prepared powder is mixed in a roller ball mill for 6-8 hours, and then the mixed powder is hand-mixed in a mortar for 15-20 minutes to make the powder evenly mixed. Take the properly mixed powder and put it into the mold, and press it at room temperature to form a cylindrical reaction prefabricated block with a diameter of 28±0.5 mm and a height of 40-50 mm. The density of the prefabricated block is 70±5.0 of the theoretical density of the mixed powder. %. Put the prefabricated block into the graphite mold, and then put a high-strength graphite pressure rod on the upper part of the prefabricated block. Put the graphite mold with the prefabricated bloc...

Embodiment 2

[0035] The nano-TiC ceramic particle reinforced copper matrix composite material composed of TiC24 and Cu76 by weight percentage was prepared.

[0036] Take Cu powder, Ti powder, and carbon nanotubes as ingredients. Wherein, the ratio of Cu powder, Ti powder and carbon nanotube is 76.0:19.2:4.8 by weight. Its preparation method is with embodiment 1. X-ray results showed that the product was pure, while field emission results showed that the TiC particles produced therein had a size of about 90 nm.

Embodiment 3

[0038] A nano-TiC ceramic particle reinforced copper alloy matrix composite material composed of TiC20 and Cu-0.1Zr alloy matrix 80 is prepared according to weight percentage.

[0039] Take Cu powder, Ti powder, Zr powder, and carbon nanotubes as ingredients. Wherein, the ratio of Cu powder, Zr powder, Ti powder and carbon nanotubes is 79.92:0.08:16.0:4.0 by weight. Its preparation method is with embodiment 1. X-ray results showed that the product was pure, while field emission results showed that the TiC particles formed therein were about 70 nm in size.

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Abstract

The invention relates to an in-situ nano TiC ceramic particle reinforced copper based composite material and a preparation method thereof. According to the invention, an in-situ nano TiC ceramic particle reinforced copper or cooper alloy based composite material is prepared by adopting a combustion synthesis chemical reaction method and a hot-pressing technology, wherein the size of the TiC ceramic particle synthesized by an in-situ reaction is less than 100 nm, and the weight percentage of the TiC ceramic particle is 3-30. The preparation method comprises the following steps: mixing reactant powder materials in proportion and preparing a blank; evenly mixing ingredients in a drum type ball mill mortar; pressing at room temperature so as to obtain a reaction prefabricated block; heating the prefabricated block so as to initiate a combustion reaction and then immediately applying an axial pressure on the prefabricated block, and cooling the prefabricated block to room temperature along with a furnace after maintaining the pressure so as to synthesize the nano TiC ceramic particle reinforced pure cooper or copper alloy based composite material. The material provided by the invention has the main characteristics that nano TiC is generated by an in-situ mode; the surface of the ceramic particles is pure, and the interface bonding strength of the ceramic particles and the substrate is high; the distribution of the nano TiC ceramic particles in the substrate is uniform; and the contents of impurities in the substrate are less.

Description

technical field [0001] The invention belongs to the application field of novel particle-reinforced metal-based composite materials, and in particular relates to a new in-situ nano-TiC ceramic particle-reinforced copper or copper alloy-based composite material and a preparation method thereof. Background technique [0002] With the high-speed and sustainable development of my country's high-speed trains, electric power, electronics, communications and other fields, the requirements for the comprehensive performance of materials are getting higher and higher. Because ceramic-metal matrix composites can effectively combine the good thermal conductivity, electrical conductivity and good plasticity of metals with the high temperature resistance, wear resistance and corrosion resistance of ceramics, they have received extensive attention. Generally speaking, the smaller the size of the ceramic particles used as the reinforcing phase, the better the reinforcing effect. Therefore, ...

Claims

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Application Information

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IPC IPC(8): C22C32/00C22C9/00C22C1/05
Inventor 姜启川靳慎豹沈平王慧远周东帅
Owner JILIN UNIV
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