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    Introduction to the use and properties of amorphous boron powder
    Hits:   Date:2020-07-24  
    The chemical properties of amorphous elemental boron are more active than crystalline elemental boron. Crystalline boron is very hard, and it is often used instead of diamond to make cutting tools or drills. A small amount of boron is added in the metal smelting process, on the one hand, it is used as a deoxidizer to prevent the metal from oxidizing at high temperatures; on the other hand, it forms an alloy to improve the performance of the metal.

    Amorphous boron powder is an important energy material. It is used as a solid fuel in composite solid propellants. The calorific value of boron is more than twice that of carbon, about twice that of aluminum and more than twice that of magnesium. The value is almost three times that of hydrocarbon fuel, the density is only slightly lower than that of aluminum, and it has the highest volumetric heating value. In terms of its energy, boron should be the best non-metal fuel. And amorphous boron due to its irregular shape and large specific surface area greatly reduces its ignition temperature.