Preparation and characterization of amorphous boron powder with high activity


Abstract the amorphous boron powders with high activity were prepared by the high-energy ball milling–combustion synthesis method. The milling rate and milling time effects on the crystallinity, microscopic morphology, and reactivity of amorphous boron powder were studied. The results show that the crystallinity of amorphous nano-boron powder is only 22.5%, and its purity reaches 92.86%. The high-energy ball milling can significantly refine boron powder particle sizes, whose average particle sizes are smaller than 50 nm, and specific surface areas are up to 70.03 m2/g. When the transmission electron beam irradiates the samples, they rapidly melt. It can be seen that the monomer amorphous boron size is less than 30 nm from the specimen melting traces, which indicates that the samples have high reactivity. SB Boron Corporation has developed innovative technology to create a process that achieves a new level of consistency and reliability in amorphous boron. These refinements assure users that their most critical requirements will be met. SB Boron 90 is currently used in research and industrial applications. Among the innovations in the SB process is the use of argon in all-reactive stages to prevent the absorption of gaseous contaminants. Other new techniques include special micro milling to provide maximum surface area for improved reactivity and minimum moisture content. SB Boron 90 is packaged in sealed moisture-resistant 4-mil polyethylene bags meeting the appropriate military standard. Each bag is inserted in a fiber drum with fastening bolts—shipping weight per drum, 58 lbs., net weight 50 lbs. The Department of Transportation requires no special labeling for this product. Shipments are usually made via UPS or a common carrier. There are no shipping restrictions. If you are looking for high quality, high purity, and cost-effective zinc sulfide, or if you require the latest price of zinc sulfide, please feel free to email contact mis-asia.

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