期刊文献+

化学液相沉积法制备Fe包覆Al复合粉体

Preparation of Fe/Al Composite Powder by Chemical Liquid Deposition Method
下载PDF
导出
摘要 以羰基铁(Fe(CO)5)为前驱体,采用化学液相沉积法,在自行设计的装置中实现了Fe纳米粒子在微米Al粉表面快速、均匀的沉积,制备出了具有核壳结构的Fe/Al微纳米粒子。利用XRD、SEM和TG/DTA对产物进行了相应的表征,并对不同Fe、Al物质的量比的制备情况进行了研究。结果表明,所得Fe/Al复合粉体的结晶性能良好;铝颗粒表面明显被一层Fe壳致密包覆,且包覆的铁层呈团粒状;Fe/Al微纳米复合粉体与O2反应的活性明显高于原料Al粉,放热量以及增重均得到大幅度提高,热量释放更快速、更集中,燃烧过程得到明显改善。n(Fe)∶n(Al)=0.5∶1时的放热量最大,放热性能最优。 Abstract Core-shell structured Fe/A1 composite powders were successfully fabricated by chemical liquid depo- sition method with iron pentacarbonyl (Fe(CO)s) as the precursor in a selfdesigned processing system. Property chara- cterizations were performed with X-ray diffraction (XRD), scanning electron microscopy (SEM) and simultaneous thermogravimetry-differential thermal analysis (TG-DTA). Fe/A1 composite powders with different mole ratio of Fe to A1 were discussed. Results show that A1 powders were coated with a fine layer of Fe and the oxidation kinetic is significantly improved over pure A1 powders. In addition, compared to pure A1 powders, the Fe/A1 composite pow- ders have much higher reactivity, exothermal and weight gaining capabilities. Heat can be released in a much faster and more concentrated way which considerably improves the combustion process. Composite powder with n (Fe) :n(Al)=0. 5 : 1 has the maximum heat release and weight gain.
出处 《材料导报》 EI CAS CSCD 北大核心 2013年第24期62-65,共4页 Materials Reports
基金 国家高技术研究发展计划(863计划)(2009AA03Z317)
关键词 Fe/Al复合粒子 化学液相沉积 热性能 羰基铁 Fe/A1 composite powders, chemical liquid deposition, thermal properties, iron pentacarbonyl
  • 相关文献

参考文献15

  • 1Dreizin E L. Experimental Study of stages in aluminum particle combustion in air[J].{H}Combustion and Flame,1996,(05):541.
  • 2Yetter R A,Risha G A. Metal partical combustion and nanotechnology[J].{H}PROCEEDINGS OF THE COMBUSTION INSTITUTE,2009,(03):1819.
  • 3Brooks K P,Beckstead M W. Dynamics of aluminum combustion[J].{H}JOURNAL OF PROPULSION AND POWER,1995,(04):769.
  • 4Meda L,Marra G. Nano-composites for rocket solid propellants[J].{H}Composites Science and Technology,2005,(05):769.
  • 5Il'in A P,Gromov A A. Reactivity of Aluminum powders[J].Combust Explos Shock Waves,2001,(04):543.
  • 6Granier J J,Pantoya M L. Ignition and combustion behaviors of nano composite Al/MoO3[J].{H}Combustion and Flame,2004,(18):373.
  • 7Babuk V A. Propellant formulation factors and metal agglomeration in combustion of aluminized solid rocket propellant[J].{H}Composites Science and Technology,2001,(05):261.
  • 8Wang Y,Jiang W. Thermite reactions of Al/Cu coreshell nanocomposites with WO3[J].{H}Thermochimica Acta,2007,(01):69.
  • 9Hahma A,Gany A. Combustion of activated aluminum[J].{H}Combustion and Flame,2006.464.
  • 10刘小娣,杨毅,李凤生.化学镀法制备纳米Cu/Al复合粉末[J].功能材料,2006,37(8):1335-1337. 被引量:21

二级参考文献8

  • 1杨毅,李凤生,刘宏英.金属铝粉表面纳米膜包覆[J].中国有色金属学报,2005,15(5):716-720. 被引量:24
  • 2Johnson O H. Plasticized High Explosive and Propellant Composition[P]. US: 3389026,1968.
  • 3Meda L, Marra G, et al.[J]. Composites Science and Technology,2005,65 (5) :769-773.
  • 4Hanyaloglu S C, et al. [J]. Materials Characterization,2001,47 (1) : 9-16.
  • 5Dong Yanchun,et al. [J]. Surface and Coatings Technology, 2004,2:223-228.
  • 6Kishore K, Sunitha M R. [J]. Combustion and Flame,1978, (33) :311-314.
  • 7Hung Aina.[J]. Planting and Surface Finishing, 1988,75(1),62-65.
  • 8张承忠.金属的腐蚀与保护[M].北京:冶金工业出版社,1988.102.

共引文献25

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部