Chemical reaction of in-situ processing of NiAl/Al2O3 composite by using thermite reaction

被引:0
|
作者
Liu, Y [1 ]
Fan, XN
Zhang, MX
Qin, XY
机构
[1] Anhui Univ Sci & Technol, Dept Mat Sci & Technol, Huainan 232001, Peoples R China
[2] Chinese Acad Sci, Inst Solid State Phys, Hefei 230031, Peoples R China
关键词
NiAl/Al2O3; composite; thermite reaction; apprarent activation energy;
D O I
暂无
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
NiAl/Al2O3 composite were synthesized by thermite reaction of nickel oxide and aluminum power mixtures. The phase, the microstructure of the composite, as well as the thermite reaction mechanism, were investigated by X- ray diffractometry (XRD), scanning electron microscopy (SEM) combined with differential scanning calorimetry (DSC). The experimental results show that the thermite reaction, leads to the interpenetrating network structure NiAl/Al2O3 at 1223K for 60 min and the chemical reaction apparent activation energy is E-ap = 166.960 +/- 13.496 kj . mol(-1) in the NiO/Al system.
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页码:90 / +
页数:4
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