A preparation method of graphene titanium matrix composite material with controllable interface reaction

A titanium-based composite material and interfacial reaction technology, applied in the field of graphene titanium-based composite material preparation, can solve the problems of easy completion of graphene reaction and difficult control of interfacial reaction, and achieve weakening of interfacial reaction, excellent mechanical properties and thermal conductivity, High density effect

Active Publication Date: 2021-04-30
NORTHWESTERN POLYTECHNICAL UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The purpose of the present invention is to solve the problem that the interface reaction is difficult to control and the graphene is easy to complete the reaction in the preparation process of the current graphene-titanium-based composite material.

Method used

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  • A preparation method of graphene titanium matrix composite material with controllable interface reaction
  • A preparation method of graphene titanium matrix composite material with controllable interface reaction
  • A preparation method of graphene titanium matrix composite material with controllable interface reaction

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Embodiment 1

[0037] A method for preparing a graphene-titanium-based composite material with controllable interface reaction, comprising the following steps:

[0038] Step 1, preparing silicon carbide-coated graphene: according to the mass ratio of graphene and silicon carbide nanoparticles of 10:0, the mixed powder of graphene and silicon carbide nanoparticles is added to ethanol, so that the ethanol mixed liquid containing the mixed powder Concentration is 2mg / ml, after ultrasonic vibration for 1h, vacuum oven drying;

[0039] Step 2, prepare silicon carbide modified graphene / TC4 composite powder: add TC4 powder and graphene modified by silicon carbide into a planetary ball mill according to the mass of graphene at 2% (excluding silicon carbide nanoparticles), and use oxidation Zirconium ball milling tank and grinding beads, ball to material ratio 1:1, speed 180rpm, ball milling time 8h, use forward ball milling for 10 minutes and stop for 20 minutes, then reverse ball milling for 10 min...

Embodiment 2

[0043] A method for preparing a graphene-titanium-based composite material with controllable interface reaction, comprising the following steps:

[0044] Step 1, preparing silicon carbide-coated graphene: according to the mass ratio of graphene and silicon carbide nanoparticles of 9:1, the mixed powder of graphene and silicon carbide nanoparticles is added to ethanol, so that the ethanol mixed liquid containing the mixed powder The concentration was 2 mg / ml, and dried in a vacuum oven after ultrasonic vibration for 1 h.

[0045] Step 2, prepare silicon carbide modified graphene / TC4 composite powder: add TC4 powder and graphene modified by silicon carbide into a planetary ball mill according to the mass of graphene at 2% (excluding silicon carbide nanoparticles), and use oxidation Zirconium ball milling tank and grinding beads, ball to material ratio 1:1, speed 180rpm, ball milling time 8h, use forward ball milling for 10 minutes and stop for 20 minutes, then reverse ball milli...

Embodiment 3

[0049] A method for preparing a graphene-titanium-based composite material with controllable interface reaction, comprising the following steps:

[0050]Step 1, preparing silicon carbide-coated graphene: according to the mass ratio of graphene and silicon carbide nanoparticles of 8:2, the mixed powder of graphene and silicon carbide nanoparticles is added to ethanol, so that the ethanol mixed liquid containing the mixed powder The concentration was 2 mg / ml, and dried in a vacuum oven after ultrasonic vibration for 1 h.

[0051] Step 2, prepare silicon carbide modified graphene / TC4 composite powder: add TC4 powder and graphene modified by silicon carbide into a planetary ball mill according to the mass of graphene at 2% (excluding silicon carbide nanoparticles), and use oxidation Zirconium ball milling tank and grinding beads, ball to material ratio 1:1, speed 180rpm, ball milling time 8h, use forward ball milling for 10 minutes and stop for 20 minutes, then reverse ball millin...

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Abstract

The invention discloses a method for preparing a graphene-titanium-based composite material with controllable interface reaction, which uses silicon carbide nanoparticles to coat the surface of graphene, reduces the contact area between graphene and titanium substrates, and prevents carbon and titanium from forming at high temperatures. interdiffusion. The preparation method of the present invention solves the problem that graphene and titanium matrix are prone to chemical reactions during high-temperature molding, and makes it possible to use few-layer or even single-layer graphene as a reinforcement to prepare graphene-titanium-based composite materials.

Description

technical field [0001] The invention belongs to the technical field of preparation of titanium-based composite materials, in particular to a method for preparing graphene-titanium-based composite materials with controllable interface reactions. Background technique [0002] Titanium alloys have the advantages of low density, high specific strength, heat resistance, and corrosion resistance, and are widely used in aerospace and other fields. Higher and higher. An effective way to solve this problem is to research and develop titanium-based composite materials. Compared with traditional reinforcements such as titanium carbide, titanium boride, and silicon carbide, graphene has better mechanical, thermal, and electrical properties. Its modulus reaches 1TPa, its fracture strength can reach about 120GPa, and its thermal conductivity can reach about 5000W / (mK). Using graphene as a reinforcement is expected to obtain titanium-based composite materials with better mechanical prope...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/05C22C14/00C22C32/00
CPCC22C1/05C22C14/00C22C32/0063
Inventor 李金山陈彪张涛寇宏超晏琪陈一丹
Owner NORTHWESTERN POLYTECHNICAL UNIV
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