Unlock instant, AI-driven research and patent intelligence for your innovation.

Titanium-aluminum intermetallic compound-carbon nano tube compound material preparation method and products

A technology of intermetallic compounds and carbon nanotubes, applied in the preparation of titanium-aluminum matrix composite materials, the preparation method of titanium-aluminum intermetallic compound-carbon nanotube composite materials and its products, to achieve the effect of improving comprehensive performance

Inactive Publication Date: 2011-07-06
SHANDONG JIAOTONG UNIV
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the method of preparing composite materials using carbon nanotubes as reinforcements and titanium-aluminum intermetallic compounds as a matrix has not been reported.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1) Put Ti and Al with a purity of 99.5% into Ti 48 Al 52 The required atomic ratio is arc-melted in an argon atmosphere to make it evenly mixed and cooled to obtain Ti 48 Al 52 master alloy ingot;

[0026] (2) The master alloy ingot is ground into a powder with an average grain size less than 300 μm by mechanical grinding, and dried with a dryer;

[0027] (3) Mix carbon nanotubes and titanium-aluminum alloy powder with a volume percentage of 1%, and grind the mixed powder composed of carbon nanotubes and titanium-aluminum alloy powder with a low-power mechanical alloying equipment, and the grinding time is 15 Hour. After the mixed powder is evenly mixed, put it into the dryer and dry it for a long time at a temperature of 473K to remove the moisture contained in the mixed powder;

[0028] (4) Compacting the composite powder obtained in step (3) in a mold with a diameter of 42 mm, the pressing pressure is 150 MPa, and the pressing time is 30 minutes;

[0029] (5) ...

Embodiment 2

[0033] (1) Ti and Al with a purity of 99.7% are pressed by Ti 50 Al 50 The required atomic ratio is arc-melted in an argon atmosphere to make it evenly mixed and cooled to obtain Ti 50 Al 50 master alloy ingot;

[0034] (2) The master alloy ingot is ground into a powder with an average grain size less than 300 μm by mechanical grinding, and dried with a dryer;

[0035] (3) Mix carbon nanotubes and titanium-aluminum alloy powder with a volume percentage of 2%, and grind the mixed powder composed of carbon nanotubes and titanium-aluminum alloy powder with a low-power mechanical alloying device, and the grinding time is 18 Hour. After the mixed powder is evenly mixed, put it into the dryer and dry it for a long time at a temperature of 473K to remove the moisture contained in the mixed powder;

[0036] (4) Compacting the composite powder obtained in step (3) in a mold with a diameter of 42 mm, the pressing pressure is 165 MPa, and the pressing time is 45 minutes;

[0037] (...

Embodiment 3

[0041] (1) Ti and Al with a purity of 99.8% are pressed by Ti 30.5 Al 69.5 The required atomic ratio is arc-melted in an argon atmosphere to make it evenly mixed and cooled to obtain Ti 30.5 Al 69.5 master alloy ingot;

[0042] (2) The master alloy ingot is ground into a powder with an average grain size less than 300 μm by mechanical grinding, and dried with a dryer;

[0043] (3) Mix carbon nanotubes and titanium-aluminum alloy powder with a volume percentage of 5%, and use low-power mechanical alloying equipment to grind the mixed powder composed of carbon nanotubes and titanium-aluminum alloy powder, and the grinding time is 24 Hour. After the mixed powder is evenly mixed, put it into the dryer and dry it for a long time at a temperature of 473K to remove the moisture contained in the mixed powder;

[0044](4) Compacting the composite powder obtained in step (3) in a mold with a diameter of 42 mm, the pressing pressure is 180 MPa, and the pressing time is 60 minutes; ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
strengthaaaaaaaaaa
strengthaaaaaaaaaa
strengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses preparation of a titanium-aluminum intermetallic compound-carbon nano tube compound material and a product thereof, wherein the compound material is prepared by a powder mixing method, the obtained titanium-aluminum intermetallic compound-carbon nano tube compound material comprises 2%-3% of carbon nano tubes by volume percentage and the balance titanium-aluminum intermetallic compound, which has lower density and higher compressive strength, and can be applied to the aerospace field.

Description

technical field [0001] The invention relates to a preparation method of a titanium-aluminum matrix composite material and a product thereof, in particular to a preparation method of a titanium-aluminum intermetallic compound-carbon nanotube composite material and a product thereof. It belongs to the field of metal material science and nanomaterial science. Background technique [0002] TiAl-based intermetallic compounds have low density, can maintain high strength and elastic modulus at high temperature, have certain ductility at room temperature, and have fairly good oxidation resistance, and it also has good creep resistance And oxidation resistance, these advantages make it the most competitive material for aviation, aerospace, aerospace missile engines and lightweight heat-resistant structural parts of automobiles. However, the low plasticity at room temperature and the concomitant poor formability hinder its practical application. For this reason, many researchers try...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C22C49/12C22C49/14C22C47/14
Inventor 庞来学徐静邢德进朱文心张金升
Owner SHANDONG JIAOTONG UNIV