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A kind of nano tic0.5 particle in situ reinforced cu(al) composite material and preparation method thereof

A composite material and particle technology, which is applied in the field of nano-TiC0.5 particle in-situ reinforced Cu composite material and its preparation, can solve the problems of weak interfacial bonding and large particle size, achieve good interfacial bonding strength, simple preparation process, high intensity effect

Active Publication Date: 2011-11-30
BEIJING JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The technical problem to be solved by the present invention is that the interface between the existing ceramic particles and copper is weak and the particle size is large

Method used

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  • A kind of nano tic0.5 particle in situ reinforced cu(al) composite material and preparation method thereof
  • A kind of nano tic0.5 particle in situ reinforced cu(al) composite material and preparation method thereof
  • A kind of nano tic0.5 particle in situ reinforced cu(al) composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0036] Step one ingredients

[0037] Weigh Ti with a purity of 98.5% 2 0.74 grams of AlC powder and 159.00 grams of Cu powder with a purity of 99.9%.

[0038] Step two mixing

[0039] Mix the ingredients of step 1, add 110 ml of absolute ethanol and 320 g of agate balls, ball mill the mixture for 2 hours, dry at 60°C, grind the dried mixed raw materials, and pass through a 100 mesh sieve.

[0040] Step three cold press forming

[0041] The mixed raw materials of step 2 are cold pressed into a bar-shaped body under a pressure of 140 MPa.

[0042] Step 4 sintering

[0043] Put the bar-shaped blank prepared in step 3 into a graphite mold in a high-temperature furnace, under the protection of argon, heat up to 1100°C at a rate of 40°C / min, keep the temperature for 20 minutes, and set the furnace temperature at a rate of 10°C / min Reduce to 60°C to obtain the nano TiC of the present invention 0.5 In-situ particle reinforced Cu(Al) composites; among them TiC 0.5 The content of is about 0.59 gra...

Embodiment approach 2

[0046] Step one ingredients

[0047] Weigh Ti with a purity of 99.0% 2 2.96 grams of AlC powder and 25.64 grams of Cu powder with a purity of 99.9%.

[0048] Step two mixing

[0049] Mix the ingredients of step 1, add 20 ml of absolute ethanol and 60 g of agate balls, ball mill the mixture for 2 hours, dry at 60°C, grind the dried mixed raw materials, and pass through an 80 mesh sieve.

[0050] Step three cold press forming

[0051] The mixed raw materials of step 2 are cold pressed into a bar-shaped body under a pressure of 160 MPa.

[0052] Step 4 sintering

[0053] Put the bar-shaped blank prepared in step 3 into a graphite mold in a high-temperature furnace, and under the protection of argon, heat up to 1130°C at a rate of 30°C / min, hold for 20 minutes, and set the furnace temperature at a rate of 10°C / min Reduce to 60°C to obtain the nano TiC of the present invention 0.5 In-situ particle reinforced Cu(Al) composites; among them TiC 0.5 The content of is about 2.37 grams, and the res...

Embodiment approach 3

[0056] Step one ingredients

[0057] Weigh Ti with a purity of 99.0% 2 4.44 grams of AlC powder and 22.43 grams of Cu powder with a purity of 99.9%.

[0058] Step two mixing

[0059] Mix the ingredients of step one, add 20 ml of absolute ethanol and 60 g of agate balls, ball mill the mixture for 3 hours, dry at 70°C, grind the dried mixed raw materials, and pass through a 110-mesh sieve.

[0060] Step three cold press forming

[0061] The mixed raw materials of step 2 are cold pressed into a strip-shaped body under a pressure of 160 MPa.

[0062] Step 4 sintering

[0063] Put the bar-shaped blank prepared in step 3 into a graphite mold in a high-temperature furnace, under the protection of argon, heat up to 1150°C at a rate of 30°C / min, hold for 30 minutes, and set the furnace temperature at a rate of 15°C / min Reduce to 60°C to obtain the nano TiC of the present invention 0.5 In-situ particle reinforced Cu(Al) composites; among them TiC 0.5 The content is about 3.55 grams, and the rest i...

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Abstract

The invention provides a nano TiC0.5 particle in situ reinforced Cu(Al) composite material and a preparation method thereof. The material comprises the following chemical components by weight percent: 0.37-25.22wt% of TiC0.5, 68.46-99.54 wt% of Cu and 0.09-6.32wt% of Al. The preparation method of the material comprises the following steps: proportionally burdening Ti2AlC powder and pure copper powder, wherein the proportion of Ti2AlC is 0.46-31.54wt%, and the proportion of Cu is 68.46-99.54wt%; carrying out ball milling and mixing materials, drying, and carrying out cold pressing and formation at the pressure of 140-180MPa; and carrying out constant pressure sintering at the temperature of 1100-1180 DEG C, protecting with argon, and insulating for 20-30 minutes so as to obtain the nano TiC0.5 particle in situ reinforced Cu(Al) composite material. With high compression strength, large deformation rate and high conductivity, the material can be widely used for preparing key devices of mechanical, electric, chemical and carrying tools.

Description

Technical field [0001] The invention relates to a nano TiC 0.5 Particle in-situ reinforced Cu(Al) composite material and preparation method thereof. Background technique [0002] A composite material composed of one or several ceramic phase-reinforced copper or copper alloys, which not only has the good electrical and thermal conductivity of copper, high strength and toughness, but also the high temperature resistance, corrosion resistance, and wear resistance of ceramics Features, has a wide range of uses in electrical, chemical, transportation, machinery and other fields, and is widely used in electrical contacts, electrical switches, heat exchangers and other fields. However, the interface wettability between copper and most ceramics is poor, which makes the preparation of ceramic reinforced Cu-based composites difficult. [0003] In recent years, nano-particles reinforced copper-based composite materials to achieve excellent mechanical and tribological properties have attracte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/00C22C32/00C22C1/05
Inventor 翟洪祥黄振莺李萌启
Owner BEIJING JIAOTONG UNIV
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