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Preparation method of rare earth composite material

A composite material and rare earth technology, applied in the field of metal materials, can solve the problems of insufficient mechanical properties, difficult structural parts, poor energy release effect, etc., and achieve the effect of good energy release effect.

Active Publication Date: 2022-06-24
厦门欧斯拓科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, metal energy-releasing materials mainly use highly active elements such as Zr and Al as the main energy-releasing elements, which achieve combustion effects in environments with high air or oxygen content, but usually release energy in low-pressure anoxic and underwater environments. Poor, and its mechanical properties are insufficient, it is difficult to be used in structural parts

Method used

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  • Preparation method of rare earth composite material
  • Preparation method of rare earth composite material
  • Preparation method of rare earth composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] The preparation method of the rare earth composite material of the present embodiment includes the following steps:

[0040] Pretreatment: soak tungsten wire, molybdenum wire or tungsten-molybdenum alloy wire with a diameter of 10μm in 1mol / L hydrochloric acid, rinse with water and then dry to remove impurities on the surface of tungsten wire, molybdenum wire or tungsten-molybdenum alloy wire;

[0041] Weaving molding: according to the porosity parameter of the M braid of each embodiment and comparative example in Table 1, tungsten wire, molybdenum wire or tungsten-molybdenum alloy wire is woven into the M braid;

[0042] Sintering treatment: after stacking the four layers of the M braid, put it into a vacuum atmosphere furnace, fill the furnace with hydrogen and heat it up to 2100 ° C, sinter for 10 hours, and obtain the examples and comparative examples in Table 1 after cooling with the furnace The documented porosity of the M skeleton;

[0043] Infiltration treatmen...

Embodiment 2

[0056] The preparation method of the rare earth and tungsten composite material of the present embodiment includes the following steps:

[0057] Pretreatment: soak a tungsten wire with a diameter of 20 μm in 1mol / L hydrochloric acid, rinse with water and then dry to remove impurities on the surface of the tungsten wire;

[0058] Weaving molding: according to the porosity parameters of the tungsten wire braid of each embodiment and comparative example in Table 3, the tungsten wire is woven into a tungsten wire braid;

[0059]Sintering treatment: after stacking four layers of the tungsten wire braid, put it into a vacuum atmosphere furnace for sintering, fill the furnace with hydrogen and heat it up to 2100 ° C, sinter for 10 hours, and obtain the examples in Table 3 after cooling with the furnace and the tungsten skeleton of the recorded porosity of the comparative example;

[0060] Infiltration treatment: The tungsten skeleton is immersed in the rare earth melts of the exampl...

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Abstract

The invention discloses a preparation method of a rare earth composite material, the chemical formula of the rare earth composite material is R-H-M, R-H exists in the form of rare earth hydride, rare earth R is selected from at least one of lanthanide elements and Y elements, M is selected from at least one of W or Mo, and M is selected from at least one of Y and Y elements. The preparation method comprises the following steps: weaving at least one of a tungsten wire, a molybdenum wire or a tungsten-molybdenum alloy wire into an M woven body; at least two layers of M woven bodies are stacked and then sintered, and an M framework with the porosity of 10%-40% is obtained after furnace cooling; immersing the M skeleton into a melt of R for infiltration treatment, and separating the M skeleton after infiltration treatment from the melt of R; and after cooling the M framework, carrying out heat treatment in a hydrogen atmosphere to prepare the rare earth composite material. The rare earth composite material disclosed by the invention has high energy release and can realize efficient energy release in an oxygen-free environment, and the application environment of a metal energy release material is remarkably improved.

Description

technical field [0001] The invention relates to metal materials, in particular to a preparation method of rare earth composite materials. Background technique [0002] For the currently known metal energy release materials, the energy release mechanism is that an element that is easier to react with oxygen reacts with oxygen, releasing a large amount of heat; the second is the reaction between metal and metal or between metal and intermediate products. At present, metal energy release materials mainly use Zr, Al and other highly active elements as the main energy release elements, and achieve combustion effect in an environment with high air or oxygen content, but usually in low-pressure oxygen-deficient, underwater and other environments. poor, and its mechanical properties are insufficient, making it difficult to use in structural components. How to prepare an energy-releasing metal that can achieve high-efficiency energy release in an oxygen-free environment, has strong ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C47/06C22C47/08C22C49/00C22F1/02C22F1/18C22C111/02
CPCC22C47/066C22C47/08C22C49/00C22F1/02C22F1/18
Inventor 张畅吴建鹏吕延伟王子秋郑建平
Owner 厦门欧斯拓科技有限公司
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