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A kind of three-dimensional network silicon carbide reinforced metal matrix composite material and preparation method

A technology of network silicon carbide and three-dimensional network, which is applied in the field of three-dimensional network silicon carbide reinforced metal matrix composite materials and its preparation, can solve problems such as interface reaction, and achieve the effect of large porosity, good overall structure and small pore size

Active Publication Date: 2020-06-12
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the deficiencies of the existing technology, the present invention provides a three-dimensional network silicon carbide ceramic reinforced metal matrix composite material and a preparation method for the existing process defects. The preparation of three-dimensional network silicon carbide ceramics with porosity and uniform pore size solves the problem of interface reaction between silicon carbide ceramics and metals at high temperatures

Method used

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  • A kind of three-dimensional network silicon carbide reinforced metal matrix composite material and preparation method
  • A kind of three-dimensional network silicon carbide reinforced metal matrix composite material and preparation method
  • A kind of three-dimensional network silicon carbide reinforced metal matrix composite material and preparation method

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Embodiment 1

[0067] Preparation of three-dimensional network silicon carbide reinforced high chromium cast iron composite material, high chromium cast iron components are C: 2.7-2.9, Si<0.8, Mn: 0.8-1, P<0.15, S<0.06, Cr: 26.5-27.5, Fe surplus quantity;

[0068] (1) Dissolve the phenolic resin powder produced by Shanghai Sinopharm Group in the isopropanol solution produced by Aladdin Reagent Co., Ltd. in a mass ratio of 1:1 to prepare an isopropanol solution containing 50% phenolic resin, and obtain foaming Agents and binders;.

[0069] The wood powder passed through a 100-mesh sieve and 5mm short carbon fibers (degummed) are ball milled and mixed at a mass ratio of 5:0.2 until the short carbon fibers are evenly distributed in the wood powder to obtain a mixture; the foaming agent and binder obtained in the first step , the mixture, and the surfactant are mixed uniformly according to the mass ratio: 1:1:0.2 and stirred until there is no stratification phenomenon to obtain a mixed solution...

Embodiment 2

[0080] Preparation of three-dimensional network silicon carbide reinforced ZL104 aluminum alloy composite material, ZL104 aluminum alloy components are Si: 8.0-10.5, Mn: 0.2-0.5, Mg: 0.17-0.35, Al balance;

[0081] (1) Dissolve the phenolic resin powder produced by Shanghai Sinopharm Group in the isopropanol solution produced by Aladdin Reagent Co., Ltd. in a mass ratio of 0.5:1 to prepare an isopropanol solution containing 33.3% phenolic resin. Agents and binders.

[0082] The wood powder passed through the 100 mesh sieve and the 2mm short carbon fiber (degummed) are ball milled and mixed at a mass ratio of 5:0.1 until the short carbon fiber is evenly distributed in the wood powder to obtain a mixture; the foaming agent and binder obtained in the first step , the mixture, and the surfactant are mixed uniformly according to the mass ratio: 1:0.5:0.2 and stirred until there is no stratification phenomenon to obtain a mixed solution. Take out the mold with a diameter of 20mm an...

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Abstract

The invention relates to a three-dimensional network silicon carbide enhanced metal-based composite material and a preparation method thereof. The composite material comprises a metal matrix and a three-dimensional network silicon carbide ceramic enhanced phase. The three-dimensional network silicon carbide ceramic enhanced phase is obtained by siliconizing the surface of the three-dimensional carbon. The preparation method comprises the following steps: foaming and carbonizing a mixture of wood flour and short carbon fibers to prepare three-dimensional network carbon; and siliconizing the surface of the three-dimensional network carbon at a high temperature to prepare the three-dimensional network silicon carbide ceramic enhanced phase and carrying out cast-infiltration to the metal matrix to obtain the three-dimensional network silicon carbide enhanced metal-based composite material. In the composite material prepared by the method, the three-dimensional network silicon carbide ceramic is great in porosity and small in pore diameter, and the three-dimensional network silicon carbide is continuous in a three-dimensional space and forms metallurgical bonding with the metal matrix.Compared with a conventional silicon carbide particle enhanced metal matrix, the composite material has a better integral structure, and not only can play high hardness, high wear resistance and highheat resistance of the silicon carbide ceramic in the three-dimensional direction, but also can keep good toughness and heat and electricity conducting performance of the metal matrix. The prepared composite material shows excellent shock-resistant, impact-resistant and wear-resistant performance in various severe working conditions.

Description

technical field [0001] The invention relates to the technical field of composite materials; in particular, it relates to a three-dimensional network silicon carbide reinforced metal matrix composite material and a preparation method. Background technique [0002] The application and research of metal materials play an important role in today's industrial development. They are the mainstream materials used in modern industrial technology and development. They are widely used in the manufacture of structural metal products, metal tools, containers and metal packaging containers. Manufacturing of stainless steel and similar daily-use metal products, manufacturing of ships and marine engineering, etc. However, with the rapid development of science and technology and the progress of industrial technology, traditional metal materials are increasingly unable to meet the needs of modern technology applications. Due to its performance defects, a single metal material often fails dur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/10C22C33/00C01B32/05C04B35/80C04B35/84
CPCC22C1/101C22C1/1036C22C33/00C22C33/006C01B32/05C04B2235/5244C04B2235/3418
Inventor 李专黄天行肖鹏
Owner CENT SOUTH UNIV
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