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High-temperature and high-pressure preparation method of monoclinic-phase barium diazene

A technology of phase diazene, high temperature and high pressure, applied in the field of preparation of monoclinic barium diazene, to achieve the effect of shortening the preparation time, realizing large-scale production and safe operation

Inactive Publication Date: 2020-05-19
JILIN UNIV
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved in the present invention is to overcome the background technical difficulties and prepare monoclinic barium diazene by a simple and safe high temperature and high pressure method

Method used

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  • High-temperature and high-pressure preparation method of monoclinic-phase barium diazene

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Embodiment 1

[0018] Using barium azide (Ba(N 3 ) 2 ) as the raw material, first grind and briquetting, gently grind the barium azide block into powder with an agate mortar, and use a small hydraulic press to press the barium azide powder into a cylindrical shape according to the size of the synthesis cavity (height 2.5mm and 4.0mm in diameter); then start to assemble, wrap the pressed barium azide in the glove box, wrap the hexagonal boron nitride tube, then put it into the graphite tube heating container, and finally put it into the synthesis chamber Then carry out the high temperature and high pressure preparation process, adopt the domestic SPD6×600 type six-sided top press as the equipment providing high temperature and high pressure synthesis conditions, the synthesis pressure is 3GPa, and the synthesis temperature is 720K. Under this condition, the pressure is kept for 15 minutes, and then stop After heating, the sample began to cool down to room temperature naturally and then the p...

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Abstract

The invention discloses a high-temperature and high-pressure preparation method of monoclinic phase barium diazene, which belongs to the technical field of preparation of conductive energetic materials. With barium azide as a raw material through the technological processes of grinding, briquetting, assembling, high-temperature and high-pressure synthesis, and cooling and pressure relief, the monoclinic phase barium diazene is prepared. The monoclinic phase diazene barium is prepared by taking barium azide as a raw material and adopting a high-temperature and high-pressure synthesis method, sothat the preparation time is greatly shortened, and the method has certain experimental guidance significance for preparing the alkaline-earth metal diazene nitride.

Description

technical field [0001] The invention belongs to the technical field of preparation of conductive and energetic materials. In particular, barium azide (Ba(N 3 ) 2 ) as a raw material, using high temperature and high pressure synthesis technology to prepare monoclinic barium diazene, this method has an important guiding role in the preparation of other metal diazene nitrides. Background technique [0002] Nitrogen compounds have excellent physical and chemical properties, and play a very important role in industrial production, national defense construction and national economic construction. In recent years, many nitrides with excellent properties have been successfully prepared by high temperature and high pressure synthesis methods. Among them, metal diazene nitrides are a kind of energetic materials with conductive properties, and have attracted extensive attention because of their very good application prospects. [0003] According to current reports, the method for p...

Claims

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Application Information

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IPC IPC(8): C01B21/06
CPCC01B21/0612C01P2002/72C01P2002/30
Inventor 祝洪洋李悦卜焕鹏
Owner JILIN UNIV
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