Amorphous boron powder has a comparative edge over conventional fuels

Amorphous boron powder (ABP) has a comparative edge over conventional fuels like aluminum, magnesium, etc., owing to its high heat of combustion for use in fuel-rich propellants for integrated rocket ramjets. The low atomic weight, high heat output, ready ignitability with KNO, releasing large amounts of heat, and persistent burning even at low-pressure2 make boron-based pyrotechnic composition a beautiful igniter. High Energy Materials Research Laboratory, Pune, has established a process for preparing ABP Gr II of 85-88 percent purity. High-purity amorphous boron powder Gr I of 92-94 percent purity is preferred in fuel-rich propellants for integrated rocket ramjets and igniter formulations for better performance. The main impurity in ABP Gr II is magnesium in the form of magnesium poly borides. Amorphous boron powder of high purity (92-94 %) with a particle size of l-2 mm is preferred as fuel for fuel-rich propellants for integrated rocket ramjets and igniter formulations. This paper describes the studies on process optimization of two processes, i.e., oxidative roasting of boron (roasting boron in the air) and roasting boron with zinc in an inert medium for preparing high-purity boron. Experimental studies reveal that roasting boron with zinc at optimized process conditions yields boron of purity of more than 93 percent, whereas the oxidative roasting method yields boron of righteousness - of 92 percent. Oxidative roasting has a comparative edge over the other processes owing to its ease of scale-up and simplicity. If you are looking for high quality, high purity and cost-effective Amorphous Boron, or if you require the latest price of Amorphous Boron, please feel free to email contact mis-asia.

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