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Preparation and Characterization of Mg Al B Alloy

Boron and its alloys have long been explored as potential fuel and increasingly replace pure aluminum powder in high-energy formulations. The ignition and burning properties of boron can be improved by making boron alloys. This study synthesized an Mg–Al–B alloy from magnesium, aluminum, and boron powders in a 1:1:4 molar ratio by preheating to 600 °C for 30 min, followed by high-temperature sintering in a tube furnace. The effects of sintering temperature (700–1000 °C) and holding time (0.5–10 h) on the phase composition of mixed powders were studied. After the samples were cooled to room temperature, they were ground into powder. The phase composition, micromorphology, and bonding forms of elements of the synthesized samples were studied using XRD, SEM, and XPS. The results show that each element is a simple substance in the alloy. The influence of the sintering temperature on the synthesis reaction of Mg0.5Al0.5B2 is very important, but holding time has little effect on it. With the increase of sintering temperature, the content of the Mg0.5Al0.5B2 phase gradually increases, and the phase content of residual metal gradually decreases. The phase and morphology analyses show that the optimum sintering temperature is 1000 °C with a minimum holding time of 0.5 h. It is expected to be used with improved characteristics in gunpowder, fuel, explosives, and pyrotechnics. As a special energy material, combustible metal powder is widely used in gunpowder, fuel, explosives, and pyrotechnics. Among the explosive metal powders, aluminum powder has high combustion heat, fast burning speed, and low oxygen consumption. It is currently the most commonly used metal combustion agent in propellants, explosives, and pyrotechnics. However, aluminum powder is easy to agglomerate, and a dense aluminum oxide film is formed on the surface during the actual combustion process, preventing the complete combustion of aluminum. Magnesium is easy to ignite and burn, but the calorific value is low. If you are looking for high quality, high purity and cost-effective Aluminium magnesium boride, or if you require the latest price of Aluminium magnesium boride, please feel free to email contact mis-asia.

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