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Two-dimensional slice material enhanced metal-based composite

A technology of composite materials and two-dimensional sheets, which is applied in the field of metal matrix composite materials, can solve the problems of thermal conductivity and electrical conductivity of lossy metal substrates, and achieve the effects of improving thermal conductivity, avoiding mechanical properties, and alleviating high thermal resistance

Active Publication Date: 2017-08-18
SHANGHAI UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the reinforcing phase of the existing metal matrix composites has the problem of loss of metal matrix thermal conductivity

Method used

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  • Two-dimensional slice material enhanced metal-based composite
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  • Two-dimensional slice material enhanced metal-based composite

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] In this embodiment, the metal matrix composite material is based on nickel, and the Mxenes material Ti 3 C 2 T x Composite bulk material as reinforcement phase, where Ti 3 C 2 T x The particles are uniformly dispersed in the nickel matrix particles.

[0023] The above Ti 3 C 2 T x By combining the ternary layered cermet Ti 3 AlC 2 The Al atoms in the phase are extracted from the system. To the Ti 3 C 2 T x The powder is subjected to XRD diffraction pattern analysis, the results are as follows figure 1 , showing that the solid product is Ti 3 C 2 T x , where the molar ratio of Ti to C is Ti:C>1:1, that is, Ti 3 C 2 T x Contains carbon vacancies. To the Ti 3 C 2 T x The powder was analyzed by SEM, the results are as follows figure 2 As shown, the solid product was shown to be multi-layered accordion-shaped.

[0024] The composite material block is obtained by SPS sintering its powder, and the composite material powder is prepared by powder metall...

Embodiment 2

[0031] In this embodiment, the metal matrix composite material is based on copper, and the Mxenes material Ti 3 C 2 T x The composite material block is the reinforcing phase, where Ti 3 C 2 T x The particles are uniformly dispersed in the copper matrix particles.

[0032] Same as Example 1, the Ti 3 C 2 T x By combining the ternary layered cermet Ti 3 AlC 2 The Al atoms in the phase are extracted from the system. To the Ti 3 C 2 T x The powder is subjected to XRD diffraction pattern analysis, the results are as follows figure 1 , showing that the solid product is Ti 3 C 2 T x , where the molar ratio of Ti to C is Ti:C>1:1, that is, Ti 3 C 2 T x Contains carbon vacancies. To the Ti 3 C 2 T x The powder was analyzed by SEM, and the results were similar figure 2 As shown, the solid product was shown to be multi-layered accordion-shaped.

[0033] For the Ti used above 3 C 2 T x The powder is subjected to XRD diffraction pattern analysis, the results ar...

Embodiment 3

[0041] In this embodiment, the metal matrix composite material is based on magnesium, and Mxenes material Ti 3 C 2 T x The composite material block is the reinforcing phase, where Ti 3 C 2 T x The particles are uniformly dispersed in the magnesium matrix particles.

[0042] Same as Example 1, the Ti 3 C 2 T x By combining the ternary layered cermet Ti 3 AlC 2 The Al atoms in the phase are extracted from the system. To the Ti 3 C 2 T x The powder is subjected to XRD diffraction pattern analysis, the results are as follows figure 1 , showing that the solid product is Ti with carbon vacancies 3 C 2 T x . To the Ti 3 C 2 T x The powder was analyzed by SEM, and the results were similar figure 2 As shown, the solid product was shown to be accordion-shaped.

[0043] The composite material block is obtained by SPS sintering its powder, and the composite material powder is prepared by a solution in situ reduction method. The specific preparation method is basica...

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Abstract

The invention provides a two-dimensional slice material enhanced metal-based composite. According to the composite, metal is adopted as a base body, two-dimensional transition metal carbide or carbonitride, namely, MXenes is adopted as a reinforced phase, and MXenes particles are evenly dispersed in metal base body particles. Due to the fact that the MXenes material comprises a hollow carbon position and tends to metallicity, the metal base body has good wettability, and the interface bonding strength of the metal-based composite can be effectively improved. Therefore, the mechanical performance, wear resistance and other performance of the metal-based composite are enhanced. Meanwhile, the electronic coupling effect of the MXenes material and a metal base body interface is better, and the problem that in the prior art, the mechanical performance and corrosion resistance of the metal-based composite are improved through the reinforced phase, and meanwhile the heat conducting and electrical conducting performance of the metal-based composite is reduced can be avoided.

Description

technical field [0001] The invention relates to the technical field of metal matrix composite materials, in particular to a metal matrix composite material reinforced by two-dimensional sheet material Mxenes. Background technique [0002] Metal matrix composites are one of the composite materials that have been paid attention to and studied for a long time. Adding different reinforcing phases in the metal matrix can obtain high performance with good thermal conductivity, electrical conductivity, high fracture toughness, high strength, high stiffness, strong wear resistance, impact resistance, corrosion resistance, fatigue resistance and low thermal expansion coefficient. composite material. [0003] However, the reinforcing phase of the existing metal matrix composites has the problem of loss of thermal conductivity of the metal matrix. [0004] Two-dimensional transition metal carbides or carbonitrides, or MXenes, are new materials with a two-dimensional sheet structure d...

Claims

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Application Information

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IPC IPC(8): C22C32/00B22F3/10
CPCB22F3/10C22C32/0052C22C32/0089
Inventor 黄庆司晓阳周小兵都时禹
Owner SHANGHAI UNIV
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