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Three-dimensional network silicon carbide enhanced metal-based composite material and preparation method thereof

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

Active Publication Date: 2019-03-29
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 shortcomings 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 reflection between silicon carbide ceramics and metals at high temperatures

Method used

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  • Three-dimensional network silicon carbide enhanced metal-based composite material and preparation method thereof
  • Three-dimensional network silicon carbide enhanced metal-based composite material and preparation method thereof
  • Three-dimensional network silicon carbide enhanced metal-based composite material and preparation method thereof

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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) The phenolic resin powder produced by Shanghai Sinopharm Group is dissolved in the isopropanol solution produced by Aladdin Reagent Co., Ltd. according to the mass ratio of 1:1, and the isopropanol solution containing 50% phenolic resin is prepared to obtain foaming Agents and binders;.

[0069] Take the wood flour of 100 mesh sieve and 5mm short carbon fibers (degummed) and carry out ball milling and mixing at a mass ratio of 5:0.2 until the short carbon fibers are evenly distributed in the wood flour 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 o...

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) The phenolic resin powder produced by Shanghai Sinopharm Group is dissolved in the isopropanol solution produced by Aladdin Reagent Co., Ltd. according to the mass ratio of 0.5:1, and the isopropanol solution containing 33.3% phenolic resin is prepared to obtain foaming Agents and binders;.

[0082] Take the wood flour with 100 mesh sieve and 2mm short carbon fibers (degummed) and carry out ball milling and mixing at a mass ratio of 5:0.1 until the short carbon fibers are evenly distributed in the wood flour 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. tak...

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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 Applications(China)
IPC IPC(8): C22C1/10C22C33/00C01B32/05C04B35/80C04B35/84
CPCC01B32/05C04B35/806C04B2235/3418C04B2235/5244C22C1/101C22C1/1036C22C33/00C22C33/006
Inventor 李专黄天行肖鹏
Owner CENT SOUTH UNIV
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