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A Ni-Al-based all-metal energetic material and preparation method thereof

An all-metal, mass percentage technology, applied in pressure inorganic powder coating and other directions, can solve the problems of strict preparation conditions and poor production safety, and achieve the effects of improving mechanical strength, increasing heat release, and reducing reaction temperature threshold.

Active Publication Date: 2021-05-04
BEIJING INSTITUTE OF TECHNOLOGYGY
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Problems solved by technology

It overcomes the problems of poor production safety and strict preparation conditions caused by the use of nanostructure raw material powder or nano treatment

Method used

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  • A Ni-Al-based all-metal energetic material and preparation method thereof

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Embodiment

[0018] A Ni-Al-based all-metal energetic material, comprising the steps of: selecting Al 12 Mg 17 The powder is used as an added component, mixed evenly with Ni and Al powder, and the Al-Ni-based energetic material shell is prepared by cold spraying method; the Al and Ni powders are spherical, the molar ratio of the components is 1:1, and the Al 12 Mg 17 Irregular powder prepared by mechanical disintegration, Al 12 Mg 17 The powder content is 5% (mass fraction); the particle size is 10-30 μm.

[0019] The microstructure analysis, mechanical performance test and combustion performance analysis of the obtained energetic material shell were carried out; the results are:

[0020] The results of microstructure analysis showed that Al 12 Mg 17 The particles are evenly distributed, the density of the material is about 95%, and the density is about 4.5g / cm 3 . In terms of mechanics, adding Al 12 Mg 17 The dynamic compressive strength of the latter material is about 380MPa, w...

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Abstract

The invention provides a Ni-Al-based all-metal energetic material and a preparation method thereof. When preparing the Ni-Al energetic metal composite material, an appropriate amount of Al is added therein. 12 Mg 17 It can improve the mechanical and chemical energy release properties of Ni-Al all-metal energetic materials. The formula of the invention can significantly reduce the ignition temperature threshold of the all-metal energetic material while ensuring the material preparation efficiency, and improve the combustion reaction speed and reaction efficiency of the active material.

Description

technical field [0001] The invention relates to a Ni-Al-based all-metal energetic material and a preparation method thereof, belonging to the technical field of preparation of all-metal active materials. Background technique [0002] Active materials (Reactive Materials) usually refer to energetic materials composed of two or more non-explosive solid substances that can react with themselves or air and release a large amount of chemical energy after ignition, usually with a high energy density And reaction temperature, it has a wide range of applications in the field of air defense, anti-missile, anti-radiation fragmentation warheads. When the active fragments penetrate the target, they can release a large amount of energy and produce a strong explosion or burning effect, which greatly improves the ability of the warhead to damage the target. Among them, in addition to better energy release characteristics, all-metal active materials also have certain mechanical properties ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F5/00C22C1/04C22C19/03C23C24/04
CPCB22F5/00C22C1/0433C22C19/03C23C24/04
Inventor 宁先进谭成文赵慧林于晓东王全胜赵修臣杨华楠聂志华
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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