文章基本信息

标题：Combustion Characteristics of Coated Nano Aluminum in Composite Propellants
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作者：Yunlan Sun ; Shufen Li
期刊名称：Defence Science Journal
印刷版ISSN：0976-464X
出版年度：2006
卷号：56
期号：4
页码：543-550
DOI：10.14429/dsj.56.1919
语种：English
出版社：Defence Scientific Information & Documentation Centre
摘要：The effects of coated nano-sized aluminum (Al) powder (n-Al) and micron-sized Al powder (g-Al) in propellants on the burning rate and pressure exponent have been investigated. The results show that the burning rates of propellants increase as the n-Al content increases, but the burning rate pressure exponents tend to decrease. Compared with propellant containing -Al, the increments of burning rates of propellants containing n-Al powder reduce gradually with increase in the pressure because of the differences of the combustion characteristics and ignition performances of n-Al powder and g-Al powder. Single short distance photograph, scanning electron microscopy, x-ray fluorescence analysis were used to characterise the flame image, combustion phenomena, the quenched surface image, and surface elements. A substantial difference in combustion characteristics of n-Al powder has been found in comparison with -Al powder. In addition, oxygen-bomb combustion heat, ignition temperature, and recovery ratio of residues were measured.
关键词：Nanotechnology;nanostructured materials;aluminium powder;micron-sized aluminium powder;combustion;nano-sized aluminium powder;composite propellants