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Ti-Al/B4C-based marine composite material and preparation method thereof

A technology of boron carbide-based and composite materials, which is applied in the field of Ti-Al/B4C materials and its preparation, can solve problems hindering the preparation and application of composite materials, achieve low density, high strength, good corrosion resistance, improve wettability, The effect of low production cost

Inactive Publication Date: 2012-06-27
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the smelting preparation process, due to the metal Al and B 4 The highly hydrolyzable Al formed by the combination of free C in C 4 C 3 , which greatly hinders the preparation and application of such composite materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A titanium-aluminum boron carbide-based marine composite material, its composition and content in parts by weight are as follows: 60 parts of boron carbide with a purity of >97% and a particle size of 3.5 μm or less are selected, and Ti- 37 parts of Al intermetallic compound, 2.9 parts of boric acid, and 0.1 part of multi-walled carbon nanotubes with a length between 50 and 200 nm. Its preparation method is as follows:

[0025] (1) According to the above composition and content, boron carbide powder, Ti-Al intermetallic compounds, borides and carbon nanotubes are mixed by ball milling with absolute ethanol as the medium, and dried under vacuum conditions to obtain mixed powder;

[0026] (2) Add the mixed powder prepared in the above step (1) into the graphite mold, and the layers are separated by graphite gasket or graphite paper. The required graphite mold size is determined according to the required material requirements. According to the required The thickness of th...

Embodiment 2

[0030] A titanium-aluminum boron carbide-based marine composite material, the composition and content of which are: 79 parts of boron carbide, 19 parts of Ti-Al intermetallic compound, 1.9 parts of borax, and 0.1 part of carbon nanotubes. Among them, the purity of boron carbide powder is >97%, the particle size is below 3.5 μm, and the Ti-Al intermetallic compound is prepared by mechanical alloying + annealing treatment. Carbon nanotubes are multi-walled carbon tubes with a length between 50 and 200 nm. The preparation method steps are as follows:

[0031] (1) In parts by weight, boron carbide powder, Ti-Al intermetallic compounds, borides and carbon nanotubes are mixed by ball milling with absolute ethanol as the medium, and dried under vacuum conditions to prepare mixed powder;

[0032] (2) Add the above mixed powder into the graphite mold in layers, and separate the layers with graphite gasket or graphite paper. Determine the required graphite mold size according to the re...

Embodiment 3

[0036] A titanium-aluminum-boron-carbide-based marine composite material, its composition and content in parts by weight are: 70 parts of boron carbide, 28 parts of Ti-Al intermetallic compound, 1.9 parts of metal boron, and 0.1 part of carbon nanotubes. The purity of boron carbide powder is >97%, and the particle size is below 3.5 μm; the Ti-Al intermetallic compound is prepared by mechanical alloying + annealing; the carbon nanotubes are multi-walled carbon tubes with a length of 50-200nm. The preparation method steps are as follows:

[0037] (1) According to the above weight parts, boron carbide powder, Ti-Al intermetallic compound, boride and carbon nanotubes are mixed by ball milling with absolute ethanol as the medium, and dried under vacuum condition to prepare mixed powder;

[0038] (2) Add the above mixed powder into the graphite mold in layers, and separate the layers with graphite gasket or graphite paper. Determine the required graphite mold size according to the r...

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PUM

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Abstract

The invention discloses a Ti-Al / B4C-based marine composite material and a preparation method thereof. The Ti-Al / B4C-based marine composite material comprises B4C powder, a Ti-Al intermetallic compound, a boride, and carbon nano-tubes. The preparation method of the Ti-Al / B4C-based marine composite material comprises the following steps of carrying out ball milling mixing of the raw materials and absolute ethanol as a medium, carrying out vacuum drying to obtain mixed powder, putting the mixed powder into a graphite mold, carrying out hot-pressed sintering, carrying out heat preservation, and cooling to obtain the Ti-Al / B4C-based marine composite material. The Ti-Al / B4C-based marine composite material has a low preparation cost, can be obtained by the simple preparation method, and has low density, high strength and good corrosion resistance.

Description

technical field [0001] The present invention relates to a kind of Ti-Al / B 4 C material and preparation method thereof, especially a kind of Ti-Al / B containing boron carbide, Ti-Al intermetallic compound, boride and carbon nanotube for ocean 4 C material and its preparation method. Background technique [0002] The materials used in existing marine engineering are mainly metal materials such as steel and aluminum alloy, which are used after spraying anti-corrosion, anti-fouling coatings and anti-microbial adhesion coatings on the surface, such as E. Aragon, J. Woillez, C. Perice, F. Tabaries and M. Sitz, Development of novel multilayer materials for impact applications. Materials and Design , 30 (2009), pp. 1548–1555.). For deep-sea exploration, it is still based on existing metal materials to improve its structure, and no new ceramic / intermetallic compound composite materials designed and prepared for marine environments have been reported at home and abroad. [0003] ...

Claims

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Application Information

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IPC IPC(8): C22C29/06C22C1/05
Inventor 张卫珂田晓峰王国英张敏高利珍
Owner TAIYUAN UNIV OF TECH
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