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Continuous tungsten fiber and zirconium carbide composite reinforced tungsten copper material and preparation method and application thereof

A composite reinforcement and zirconium carbide technology, applied in the field of metal ceramic composite materials, can solve the problems of high cost and difficult processing of high performance tungsten fiber reinforced tungsten copper composite materials, and achieve good reinforcement and toughening effect, good reinforcement effect, and preparation. low cost effect

Active Publication Date: 2021-10-29
安徽工业大学科技园有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to solve the problem of high cost and difficult processing of high-performance tungsten fiber reinforced tungsten-copper composite materials prepared by traditional methods, and provides a continuous tungsten Fiber and zirconium carbide composite reinforced tungsten copper material

Method used

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  • Continuous tungsten fiber and zirconium carbide composite reinforced tungsten copper material and preparation method and application thereof
  • Continuous tungsten fiber and zirconium carbide composite reinforced tungsten copper material and preparation method and application thereof
  • Continuous tungsten fiber and zirconium carbide composite reinforced tungsten copper material and preparation method and application thereof

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Effect test

Embodiment 1

[0031] The parts by weight of raw materials are as follows: single wire diameter 50 μm, 1 part of tungsten mesh of 100 mesh, Zr 14 Cu 51 1 part alloy, 1 part tungsten powder, 1 part tungsten carbide powder. The preparation process is as follows: (1) Mix tungsten powder and tungsten carbide powder at a molar ratio of 7:3, then mix the two powders with silicon nitride balls at a mass ratio of 1:2, put them into polyethylene tanks, and Mix on a ball mill for 24 hours to achieve the effect of ball milling; (2) Cut the tungsten mesh into discs with a diameter of 20 mm, and soak it in 1mol / L dilute hydrochloric acid for 12 hours to eliminate impurities on the tungsten mesh; (3) Put the mixed powder through 200 (4) Take a graphite crucible with a diameter of 25 mm, spread a mixed powder about 0.5 mm thick on the bottom of the crucible, then spread a layer of tungsten mesh, add 0.5 mm thick mixed powder to cover the tungsten mesh, repeat The above operations were performed 10 times,...

Embodiment 2

[0036] The parts by weight of raw materials are as follows: 50 μm single wire diameter, 1 part of 100 mesh tungsten mesh, 1 part of zirconium copper (40% by mass fraction of Zr) alloy, 1 part of tungsten powder, and 1 part of tungsten carbide powder. The preparation process is as follows: (1) Mix tungsten powder and tungsten carbide powder at a molar ratio of 7:3, then mix the two powders with silicon nitride balls at a mass ratio of 1:2, put them into polyethylene tanks, and Mix on a ball mill for 24 hours to achieve the effect of ball milling; (2) Cut the tungsten mesh into discs with a diameter of 20 mm, and soak them in 1mol / L dilute hydrochloric acid for 12 hours to eliminate impurities on the tungsten mesh; (3) Pass the mixed powder through 200 mesh Standard sieve, spare; (4) Take a graphite crucible with a diameter of 25mm, spread about 0.5mm thick mixed powder on the bottom of the crucible, then spread a layer of tungsten mesh, add 0.5mm thick mixed powder to cover the ...

Embodiment 3

[0039] The parts by weight of raw materials are as follows: single wire diameter 50 μm, 1 part of tungsten mesh of 100 mesh, Zr 14 Cu 511 part alloy, 1 part tungsten powder, 1 part tungsten carbide powder. The preparation process is as follows: (1) Mix tungsten powder and tungsten carbide powder at a molar ratio of 7:3, then mix the two powders with silicon nitride balls at a mass ratio of 1:2, put them into polyethylene tanks, and Mix on a ball mill for 24 hours to achieve the effect of ball milling; (2) Cut the tungsten mesh into discs with a diameter of 20 mm, and soak them in 1mol / L dilute hydrochloric acid for 12 hours to eliminate impurities on the tungsten mesh; (3) Pass the mixed powder through 200 mesh Standard sieve, spare; (4) Take a graphite crucible with a diameter of 25mm, spread about 0.5mm thick mixed powder on the bottom of the crucible, then spread a layer of tungsten mesh, add 0.5mm thick mixed powder to cover the tungsten mesh, repeat the above Operate 20...

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Abstract

The invention relates to the technical field of metal ceramic composite materials, in particular to a continuous tungsten fiber and zirconium carbide composite reinforced tungsten copper material and a preparation method and application thereof. The continuous tungsten fiber and zirconium carbide composite reinforced tungsten copper material is prepared from a mixture of the following components in parts by weight: 1 part of a woven tungsten mesh, 1-20 parts of zirconium copper alloy, 0-10 parts of tungsten powder, and 1-10 parts of tungsten carbide powder; and the average microscopic Vickers hardness of the continuous tungsten fiber and zirconium carbide composite reinforced tungsten copper material is larger than or equal to 4.5 GPa, and the bending strength of the continuous tungsten fiber and zirconium carbide composite reinforced tungsten copper material is larger than or equal to 520 MPa. The continuous tungsten fiber and in-situ synthesis zirconium carbide particle composite reinforced tungsten-copper material is prepared through a low-temperature reaction infiltration method, low-cost rapid preparation of the high-toughness tungsten-based composite material is achieved, and the composite strengthening and toughening of the tungsten fibers and the zirconium carbide particles enables the material to show pseudoplastic fracture behaviors; and the continuous tungsten fiber and zirconium carbide composite reinforced tungsten copper material has wide application prospects in the fields of aerospace, advanced high-temperature tools, solar thermoelectricity, nuclear energy and the like.

Description

technical field [0001] The invention relates to the technical field of cermet composite materials, in particular to a continuous tungsten fiber and zirconium carbide composite reinforced tungsten-copper material, a preparation method and an application thereof. Background technique [0002] The development of aerospace heat protection, advanced manufacturing, and new energy technologies depends on the application of advanced high-temperature structural materials. [0003] The demand for research and development of high-temperature structural materials integrating high specific strength, excellent thermophysical properties, and low manufacturing cost is becoming more and more urgent. Zirconium carbide particle-reinforced tungsten-copper materials have attracted widespread attention because they have higher strength and high-temperature thermal conductivity than high-temperature metal materials, and better thermal shock resistance and economy than high-temperature structural c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C49/10C22C49/14C22C47/06C22C47/14C22C111/02
CPCC22C49/10C22C49/14C22C47/066C22C47/14
Inventor 王东徐凯冉松林丁祥金星李庆归
Owner 安徽工业大学科技园有限公司
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