固体火箭技术Issue(1)：79-82,4.DOI:10.7673/j.issn.1006-2793.2015.01.014
水蒸气气氛下铝锂合金反应特性及动力学分析
Kinetics analysis and reaction characteristics of aluminum-lithium alloys in water vapor
摘要
Abstract
Aluminum has a high energy density.In order to investigate the activation mechanism of aluminum powder reaction in water vapor,experiments were carried out on the thermobalance to study the reaction characteristics of aluminum samples with differ⁃ent content of lithium(0%,1%,2%,5%,10% and 20%)in water vapor.Single curve integral method was adopted to calculate kinet⁃ic parameter of the reaction of aluminum and aluminum⁃lithium alloy(10% and 20% lithium)with H2O.The reaction product of alu⁃minum⁃lithium alloy with H2O was measured by XRD.The results show that the weight gain rate of samples increases as lithium con⁃tent increases.The ignition temperature drops with the increase of lithium content.But when the lithium mass percent increases up to 5%,ignition temperature rarely increases,which keeps at about 380 ℃.Finally,the conclusion is that addition of lithium decreases the apparent activation energy and promotes the reactive activativity of aluminum powder with water.关键词
铝/铝锂合金/热重分析/动力学/特性Key words
aluminum/aluminum lithium alloy/thermal gravimetric analysis/kinetics/characteristics分类
航空航天引用本文复制引用
张天佑,杨卫娟,周俊虎,陈超,刘建忠,岑可法..水蒸气气氛下铝锂合金反应特性及动力学分析[J].固体火箭技术,2015,(1):79-82,4.基金项目
国家自然科学基金（51376160）。 （）
