Synthesis and Characterization of Nano-sized Boron Powder Prepared by Plasma Torch

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摘要 Hydrogenthermalplasmajetwasemployedtopreparenano-sizedboronpowderwithhydrogenreductionofBCl3.Themaximumyieldofnano-sizedboronpowderswasabout50%withtheoperationalconditionsofH2/BCl3of4.5:1,totalfeedof4.9m3/h,andplasmapowerof25kW.ThesampleswereanalyzedbyX-raydiffraction(XRD),fieldemissionscanningelectronmicroscopy(FE-SEM),andinductivelycoupledplasma-massspectrometry(ICP-MS),inductivelycoupledplasma-atomicemissionspectrometry(ICP-AES),inductivecombustioninfraredabsorption(ICIA)andinfraredthermalconductivityofoxygenandnitrogenanalyzer(ITCA).Theresultsshowthattheboronpowdershavedifferentcrystalstructureswithhigherdispersionandpurity.Theaveragediameterisabout50nm,andthepurityis90.29%orso.Thisnewtechnologycanusesimpleprocesstoproducehighqualityboronpowders,andisfeasibleforindustrialproduction.
机构地区 不详
出版日期 2010年05月15日(中国期刊网平台首次上网日期,不代表论文的发表时间)
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