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MAX phase ceramic-metal lamellar composite material, preparation method and purpose

A composite material and metal layer technology, used in the field of military materials and composite materials, can solve problems such as poor tensile strength performance, and achieve simple and easy operation. Temperature, good uniformity and order, high strength and toughness Effect

Active Publication Date: 2019-02-12
INST OF PROCESS ENG CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ti in the prepared composite 3 AlC 2 Ceramic particles are evenly distributed, but their tensile strength properties are poor

Method used

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  • MAX phase ceramic-metal lamellar composite material, preparation method and purpose
  • MAX phase ceramic-metal lamellar composite material, preparation method and purpose
  • MAX phase ceramic-metal lamellar composite material, preparation method and purpose

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] A kind of preparation method of MAX phase ceramics-metal layered composite material comprises the steps:

[0072] (1) Ti that has passed through a 400-mesh sieve 2 AlC powder, dissolved in PMMA solution to make a MAX phase ceramic particle suspension with a concentration of 10wt%, spraying the MAX phase ceramic particle suspension on an 18 μm thick copper foil, and the coating thickness of the MAX phase ceramic particle suspension is 10 μm , to obtain a copper foil coated with MAX phase ceramic particles;

[0073] (2) Laminate the copper foil coated with MAX phase ceramic particles into a 20-layer superposition unit, place the laminated structure in a hot pressing mold, heat and evaporate to remove the PMMA solution, and obtain a pre-product;

[0074] (3) Pressurize and heat-treat the pre-product, raise the temperature to 1000°C and pressurize 25MPa, keep the temperature and hold the pressure for 30min, and finally obtain the Ti in the MAX phase ceramic-copper layered ...

Embodiment 2

[0076] The difference from Example 1 is that the coating thickness of the MAX phase ceramic particle suspension in step (1) is 4 μm, and Ti in the MAX phase ceramic-copper layered composite is finally obtained. 2 The volume content of AlC is 10%, and the thickness of the MAX phase ceramic layer is 2 μm.

Embodiment 3

[0078] The difference from Example 1 is that the coating thickness of the MAX phase ceramic particle suspension in step (1) is 16 μm, and Ti in the MAX phase ceramic-copper layered composite material is finally obtained. 2 The AlC volume content is 30%, and the thickness of the MAX phase ceramic layer is 8 μm.

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Abstract

The invention relates to an MAX phase ceramic-metal lamellar composite material, a preparation method and a purpose. The MAX phase ceramic-metal lamellar composite material comprises n layers of superposition units, wherein each superposition unit comprises a metal foil layer and an MAX phase ceramic layer attached to the metal foil layer and n is equal to or greater than 2. Ti2AlC powder and metal foil are used as raw materials for the MAX phase ceramic-metal lamellar composite material; a preform is prepared by superposing the metal foil coated with MAX phase ceramic particles; and next, the preform is subjected to pressurization heat treatment, so that the MAX phase ceramic-metal lamellar composite material is obtained. The MAX phase ceramic-metal lamellar composite material is used inthe field of carrying tools, the field of power transmission and transformation or the field of military materials.

Description

technical field [0001] The invention belongs to the field of composite materials, and specifically relates to a MAX phase ceramic-metal layered composite material and its preparation method and application. The MAX phase ceramic-metal layered composite material is used in the field of vehicle materials, power transmission and transformation fields or field of military materials. Background technique [0002] MAX phase ceramics is a general term for a class of ternary layered ceramics, M is a transition element, A is some element in the main group III or IV, and X is C or N. The atomic bonding of all MAX phase ceramic compounds has both covalent bonds, ionic bonds and metal bonds, so they have both the properties of metals and ceramics, such as thermal conductivity, electrical conductivity, thermal shock resistance and processability similar to metals, similar to Oxidation resistance, wear resistance, self-lubrication, corrosion resistance and high temperature resistance of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B15/01B32B33/00B32B37/06B32B37/10B32B38/18B60L5/20F41H5/04B23K35/30
CPCB23K35/0272B23K35/302B23K35/3033B32B15/011B32B33/00B32B37/06B32B37/10B32B38/1808B32B2037/243B32B2250/05B32B2255/06B32B2255/20B32B2307/202B32B2307/54B32B2307/542B32B2307/544B32B2307/546B32B2307/548B32B2307/558B32B2457/00B32B2571/02B32B2605/10B60L5/20F41H5/0421
Inventor 王钰司鹏超
Owner INST OF PROCESS ENG CHINESE ACAD OF SCI
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