Preparation method and application of magnesium nitride Mg3N2

 Overview of magnesium nitride Mg3N2

Magnesium nitride with the chemical formula Mg3N2 is an inorganic compound of magnesium and nitrogen, which is a greenish-yellow powder under normal temperature and pressure. Magnesium nitride is an inorganic compound composed of nitrogen and magnesium, with a molecular formula of Mg3N2 and a molecular weight of 100.9494. Belongs to the cubic crystal system. Like many metal nitrides, magnesium nitride reacts with water to form ammonia. To prepare magnesium nitride, the magnesium strip can be burned in nitrogen. Often used as a catalyst.



Preparation of Magnesium Nitride Mg3N2

At present, the main methods for preparing magnesium nitride Mg3N2 include the direct reaction of magnesium powder with nitrogen, the reaction of magnesium with nitrogen in a nitrogen plasma stream, the explosion of magnesium coils in a nitrogen atmosphere, the low-pressure chemical vapor deposition method, and the self-propagating high-temperature synthesis method. , Nano-magnesium nitride synthesis method, etc.; recently G. Soto et al. used pulsed laser deposition to prepare amorphous magnesium nitride films with different Mg:N ratios on Si substrates in a molecular nitrogen environment . These methods have limited industrial production due to their high cost, long process flow, complicated equipment operation, or relatively low yield of magnesium nitride.

Although the direct reaction of magnesium powder with nitrogen has industrial value, the production of magnesium nitride powder requires a higher reaction temperature and a longer reaction time, and the shape of the particles is incomplete and easy to agglomerate, failing to meet the industrial quality requirements. Since NH3 is more easily decomposed into N- with broken bonds than N2, and the decomposed H2 has an inhibitory effect on the formation of MgO, ammonia can be used as a nitrogen source. Chen Faqin et al. used liquid ammonia as the nitrogen source to prepare magnesium nitride powder by the direct nitridation method of magnesium powder. The following conclusions can be drawn: thermodynamic analysis shows that liquid ammonia is easier to react with magnesium powder to produce magnesium nitride than nitrogen; Incubate for 1 hour in an ammonia atmosphere at ℃, then heat up to 800℃, ammonia flow rate 500ml/min, nitriding time 1h, high-quality magnesium nitride powder with high purity and uniform powder particles can be prepared.

Application of magnesium nitride Mg3N2

The chemical formula of magnesium nitride is Mg3N2, green-yellow powder or lumps, with a relative density of 2.712. It decomposes at 800°C and sublimates at 700°C in a vacuum. Magnesium nitride is an ionic compound that is rapidly hydrolyzed in water. Soluble in acid, insoluble in ethanol:

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Magnesium nitride Mg3N2 has a wide range of uses. Magnesium nitride Mg3N2 is an indispensable sintering aid in the solid-phase reaction of preparing new ceramic materials with high hardness, high thermal conductivity, wear resistance, corrosion resistance and high temperature resistance, boron nitride and silicon nitride Mg3N2; magnesium nitride Mg3N2 is indispensable The recovery of nuclear fuel, the purification of magnesium alloy melt and the catalysis in the reaction of hBN have important roles. In addition, Mg3N2 as an additive can effectively desulfurize and increase alum, thereby increasing the density, strength, tensile strength and endurance of steel.

Magnesium and magnesium alloys are the lightest metal structural materials in engineering applications so far. In recent years, the plastic forming technology of wrought magnesium alloys has become an important research field in the world's magnesium industry. Magnesium-based alloys will occupy a more important position in the future of energy shortages. . At present, magnesium-based alloys are indispensable and important materials in aerospace, automobiles, electronic products, construction industry and daily life. However, while magnesium-based alloys are widely used, they also have their own weaknesses, such as lower hardness, strength, and melting point than common metals such as steel. How to improve the plastic forming ability of magnesium alloys has become a hot spot in magnesium alloy research. Therefore, seeking to have good hardness and strength, but also high specific strength and specific stiffness, has important academic and industrial application value.

In recent years, with the development of high-end production and electromechanical products, the requirements for the mechanical properties of magnesium-based alloys need to be further improved. The use of particle-reinforced magnesium-based alloy materials can simultaneously take advantage of the advantages of magnesium-based alloy matrix and reinforcement phase, and significantly improve magnesium. The strength, elastic modulus, hardness and wear resistance of the base alloy. At the same time, particle-reinforced magnesium-based alloy materials have broad application prospects in modern industrial production fields such as advanced manufacturing due to their low cost, high strength and rigidity.

Based on the above purpose, non-toxic and pollution-free magnesium nitride-nanotube particles are added to the magnesium-based alloy to enhance the strength of the magnesium-based alloy material, obtain good toughness and hardness, and at the same time, the electrical and thermal conductivity are effectively improved. The chemical composition and mass fraction of the base material magnesium-based alloy are: magnesium Mg: 90-98, and the remaining composition is aluminum Al. Regarding the patent for improving the performance of magnesium-based alloys, the existing magnesium-based alloys in my country are in patent 200880017616.2. By adding indium, scandium, yttrium and other precious metals and 2-3% rare earth metals, the sample grain size after smelting is less than or equal to 3 microns, the invention contains more noble metal elements = high, and the manufacturing cost is high. In the patent 201210324168.9, the alloying elements (Er, Cu, Ag) that can improve the amorphous forming ability of Mg alloys are selected, and the alloy materials are prepared by ordinary melting and hot extrusion methods, and then the magnesium-based materials are obtained by melting and extrusion. alloy. The above alloys are all added with rare metals. Although it can improve the toughness, hardness and wear resistance of magnesium-based alloy materials, it increases the melting cost of magnesium-based alloys. At the same time, to achieve higher strength and wear resistance, further Conduct in-depth research.

CN201610474622.7 proposes a preparation method of magnesium nitride-carbon nanotube particle-reinforced magnesium-based alloy material that is stable in processing technology, low in production cost, pollution-free and can be produced under conventional smelting conditions. The strength, toughness, hardness and wear resistance of alloy materials have been greatly improved. Therefore, the purpose of enhancing the mechanical properties of magnesium-based alloy materials by adding magnesium nitride-carbon nanotube particle reaction.

Price of Magnesium Nitride Mg3N2

The price of magnesium nitride Mg3N2 products will vary with random factors such as production cost, transportation cost, international situation and market supply and demand for magnesium nitride Mg3N2 products. Tanki New Materials Co., Ltd. aims to help various industries and chemical wholesalers find the cost of high-quality and low-cost nanomaterials and chemicals by providing a full set of customized services. If you are looking for magnesium nitride Mg3N2 products, please feel free to send an inquiry to get the latest prices of magnesium nitride Mg3N2 products.

Suppliers of Magnesium Nitride Mg3N2

As a global supplier of magnesium nitride Mg3N2, Tanki New Materials Co., Ltd. has extensive experience in the performance, application and cost-effective manufacturing of advanced engineering materials. The company has successfully developed a series of powder materials (titanium nitride, silicon nitride, titanium nitride, etc.), high-purity targets, functional ceramics and structural devices, and provides OEM services.

Technical Parameter of Magnesium Nitride Mg3N2 powder:
Product Name     MF       Purity   Particle SizeMelting PointDensityColor
magnesium nitrideMg3N299%5-10um800℃ 2.712g/ml  yellow brown
Chemical Composition of Magnesium Nitride Mg3N2 powder:
Mg3N2NMgSiOCFe
99%11%balance0.00%0.20%0.05%0.15%


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