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《Chinese Journal of Explosives & Propellants》 2015-05
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Preparation of Nano-CoFe_2O_4,Al/CoFe_2O_4 and Their Effects on Thermal Decomposition Performance of RDX

WANG Tong;ZHAO Ning-ning;LI Jia-chen;ZHAO Feng-qi;MA Hai-xia;College of Chemical Engineering,Northwest University;Science and Technology on Combustion and Explosion Laboratory,Xi′an Modern Chemistry Research Institute;  
Nanoparticle CoFe2O4 and Al/CoFe2O4 were prepared by hydrothermal method and ultrasonic mixing method,respectively.Their composition and morphology features were measured using X-ray diffraction(XRD)and Scanning Electron Microscope-Energy Dispersive Spectrometry(SEM-EDS).CoFe2O4/RDX and Al/CoFe2O4/RDX,according to the mass ratio of 1∶4,were prepared by ultrasonic mixing method.The effects of CoFe2O4 and Al/CoFe2O4 on the thermal decomposition of RDX were investigated by a differential scanning calorimetry(DSC).The results show that the addition of nano CoFe2O4 and Al/CoFe2O4 does not change the most probable mechanism function of the decomposition process of RDX.While after CoFe2O4 and Al/CoFe2O4 being added,the peak temperature of the thermal decomposition for the mixture exhibits a significant decrease.Moreover,the apparent activation energies of the mixed systems of CoFe2O4/RDX and Al/CoFe2O4/RDX decrease in comparison with that of RDX,indicating that the addition of CoFe2O4 and Al/CoFe2O4 can promote the decomposition of RDX.
【Fund】: 国家自然科学基金(21373161);; 高等学校博士学科点专项科研基金(20126101110009);; 教育部新世纪优秀人才支持计划基金(12-1047)资助项目
【CateGory Index】: TB383.1
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