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Preparation method of graphene-enhanced titanium-based material

A titanium-based composite material and graphene technology, applied in the field of materials, can solve the problems of poor dispersion of graphene-titanium alloy mixed powder and other problems

Inactive Publication Date: 2017-05-10
SINO EURO MATERIALS TECH OF XIAN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the deficiencies in technology, the object of the present invention is to provide a new method to solve the poor dispersion of graphene-titanium alloy mixed powder and reduce the interface defects of graphene-enhanced titanium-based composite materials to prepare high-dispersion graphene-enhanced titanium Matrix composite materials to meet the use requirements of key components of aero-engines

Method used

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  • Preparation method of graphene-enhanced titanium-based material
  • Preparation method of graphene-enhanced titanium-based material
  • Preparation method of graphene-enhanced titanium-based material

Examples

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Effect test

Embodiment 1

[0017] A preparation method of graphene-reinforced titanium-based composite material, comprising the following steps:

[0018] 1. Add 5g of graphene nanosheets into absolute ethanol, and ultrasonically disperse in absolute ethanol for 30 minutes;

[0019] 2. Add 1000g of spherical titanium alloy powder into 4% polyvinyl alcohol for ball milling, and then add the mixed powder into graphene nanosheets for ultrasonic dispersion for 30 minutes;

[0020] 3. Ball mill the dispersed graphene-titanium alloy mixed powder at a speed of 400 r / min, with a ball-to-material ratio of 4:1, and then perform pyrolysis reaction at 500°C;

[0021] 4 Put the titanium alloy mixed powder in step 3) into the graphite mold covered with graphite paper, put the graphite mold into the plasma sintering system, heat the graphite crucible to 1050°C at a heating rate of 200°C / min, and During the heating process, a pressure of 40 MPa is applied to the compacted powder material, and then, at a sintering tempe...

Embodiment 2

[0024] A preparation method of graphene-reinforced titanium-based composite material, comprising the following steps:

[0025] 1. Add 10g of graphene nanosheets into absolute ethanol, and ultrasonically disperse in absolute ethanol for 30 minutes;

[0026] 2. Add 1000g of spherical titanium alloy powder into 4% polyvinyl alcohol for ball milling, and then add the mixed powder into graphene nanosheets for ultrasonic dispersion for 30 minutes;

[0027] 3. Ball mill the dispersed graphene-titanium alloy mixed powder at a speed of 400 r / min, with a ball-to-material ratio of 4:1, and then perform pyrolysis reaction at 500°C;

[0028] 4 Put the titanium alloy mixed powder in step 3) into the graphite mold covered with graphite paper, put the graphite mold into the plasma sintering system, heat the graphite crucible to 1050°C at a heating rate of 200°C / min, and During the heating process, a pressure of 40 MPa is applied to the compacted powder material, and then, at a sintering temp...

Embodiment 3

[0031] A preparation method of graphene-reinforced titanium-based composite material, comprising the following steps:

[0032] 1. Add 15g of graphene nanosheets into absolute ethanol, and ultrasonically disperse in absolute ethanol for 30 minutes;

[0033] 2. Add 1000 g of spherical titanium alloy powder into 4% polyvinyl alcohol for ball milling, and then add the mixed powder into graphene nanosheets for ultrasonic dispersion for 30 minutes;

[0034] 3. Ball mill the dispersed graphene-titanium alloy mixed powder at a speed of 400 r / min, with a ball-to-material ratio of 4:1, and then perform pyrolysis reaction at 500°C;

[0035] 4 Put the titanium alloy mixed powder in step 3) into the graphite mold covered with graphite paper, put the graphite mold into the plasma sintering system, heat the graphite crucible to 1050°C at a heating rate of 200°C / min, and During the heating process, a pressure of 40 MPa is applied to the compacted powder material, and then, at a sintering tem...

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Abstract

The invention relates to a preparation method of a graphene-enhanced titanium-based material. The preparation method comprises the following steps: firstly performing modification treatment on atomized spherical titanium powder by using a surface modifier; uniformly mixing the powder by virtue of a method of ultrasonic wave and ball-milling; and finally, performing spark plasma sintering and hot isostatic pressing on the mixed powder to be sintered. The preparation method provided by the invention solves the problem that graphene is not uniformly dispersed in the graphene-enhanced titanium-based material and generation of a TiC phase is effectively inhibited. The graphene-enhanced titanium-based material prepared by the preparation method provided by the invention is high in dispersity and compactness and can effectively inhibit generation of TiC.

Description

technical field [0001] The invention relates to the technical field of materials, in particular to a graphene-reinforced titanium-based composite material and a new preparation method thereof. Background technique [0002] Titanium alloy is another rising new metal after alloy steel and metal aluminum. Many of its excellent properties are not available in other metals discovered so far. Titanium has a small specific gravity and high strength. It is an ideal aerospace material. , titanium matrix composites have become candidate materials for hypersonic aerospace vehicles and next-generation advanced aeroengines due to their high specific strength, specific stiffness and high temperature resistance. Compared with other reinforcements, graphene has many superior properties. Its low density can meet the requirements of lightweight composite materials; its elastic modulus is very high, which greatly promotes the improvement of the mechanical properties of composite materials, and...

Claims

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Application Information

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IPC IPC(8): B22F1/00B22F9/04B22F3/105B22F3/15
CPCB22F1/0003B22F3/105B22F3/15B22F9/04B22F2009/043B22F2003/1051B22F2998/10B22F1/145Y02P10/25
Inventor 宋嘉明闫飞王晨相敏陈以强刘洋韩志宇王庆相梁书锦张平祥
Owner SINO EURO MATERIALS TECH OF XIAN CO LTD
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