Reactive materials synthesis and aluminothermy reaction of aluminum/cobalt-leadoxide

摘要：

　　Alumimum/cobalt nanocomposite was fabricated by displacement method, wherein NH4F and gelatin played significant roles in deposition of Co nanoparticles.The as-prepared A1/Co was etched by strong acid and alkali respectively.In acid solution, micron structure of the residue presents hollow Co shells, whereas the product separated from alkali shows fragments made up with metal Co.Analyzing the distinguishable results, possible mechanisms of etching in acid and alkali were inferred.Thermal analysis indicated that the reactivity of Al/Conano was great higher than Al/Cosubmiccon and raw A1.The ΔHr and Qmax of Al/Conano-PbO increased by 493.2 J·g-1 and by 13.65W·g-1 over Al/Cosubmicron-PbO, as well as roughly by 520.6 J.g-1 and by 16 W.g-1 over raw A1-PbO system.

关键词： reactive materials thermite Al based nanocomposites nano-cobalt Leadoxide

作者: Yi Wang Chun Yang Xiaolan Song Wei Jiang Guodong Deng Fengsheng Li

作者单位: National Special Superfine Powder Engineering Research Center,Nanjing University of Science and Tech Institute of civil engineering,Anhui University of Technology,Maanshan 243000,China School of Chemical Engineering and Environment,North University of China,Taiyuan 030051,China National Special Superfine Powder Engineering Research Center,Nanjing University of Science and Tech

会议类型: 国际会议

会议名称: 2012 China Functional Materials Technology and Industry Forum(2012中国功能材料科技与产业高层论坛)(CFMTIF2012)

会议地点: 昆明

会议语种:英文

页码: 383-388

在线出版日期: 2012-11-09（万方平台首次上网日期，不代表论文的发表时间）