Preparation and characterization of Al/B/Fe2O3 nanothermites

被引:30
作者
Shen LianHua [1 ]
Li GuoPing [1 ]
Luo YunJun [1 ]
Gao Kun [1 ]
Ge Zhen [1 ]
机构
[1] Beijing Inst Technol, Sch Mat & Engn, Beijing 100081, Peoples R China
关键词
sol-gel; nanothermites; energetic materials; properties; COMBUSTION WAVE SPEEDS; NANO; REACTIVITY; ALUMINUM;
D O I
10.1007/s11426-013-5050-2
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A sol-gel synthetic approach combined with an ultrasonic method was utilized to prepare Al/B/Fe2O3 nanothermites. The structure and properties of the prepared nanothermites were characterized by thermogravimetric analysis, differential scanning calorimetry, scanning electron microscopy, X-ray diffraction, and an impact sensitivity test. The results verified that the nano-aluminum and the micro-boron were uniformly dispersed in the pores of the iron oxide gel. The heat of the prepared Al/B/Fe2O3 nanothermites was 1.3 times that of the simple physically mixed sample. In addition, the heat of the combustion test showed that these materials were indeed energetic. Small-scale safe experiments also showed that the prepared materials through sol-gel were relatively insensitive to standard impact.
引用
收藏
页码:797 / 802
页数:6
相关论文
共 17 条
[1]  
Barbee Jr, 2011, US Patents, Patent No. [7951247B2, 7951247]
[2]   Deposition and characterization of a self-propagating CuOx/Al thermite reaction in a multilayer foil geometry [J].
Blobaum, KJ ;
Reiss, ME ;
Lawrence, JMP ;
Weihs, TP .
JOURNAL OF APPLIED PHYSICS, 2003, 94 (05) :2915-2922
[3]   Heat of combustion of tantalum-tungsten oxide thermite composites [J].
Cervantes, Octavio G. ;
Kuntz, Joshua D. ;
Gash, Alexander E. ;
Munir, Zuhair A. .
COMBUSTION AND FLAME, 2010, 157 (12) :2326-2332
[4]   THE UP-AND-DOWN METHOD FOR SMALL SAMPLES [J].
DIXON, WJ .
JOURNAL OF THE AMERICAN STATISTICAL ASSOCIATION, 1965, 60 (312) :967-978
[5]   Kinetics of oxidation of boron powder [J].
Jain, Ashish ;
Joseph, Kitheri ;
Anthonysamy, S. ;
Gupta, G. S. .
THERMOCHIMICA ACTA, 2011, 514 (1-2) :67-73
[6]   Combustion behavior of highly energetic thermites: Nano versus micron composites [J].
Pantoya, ML ;
Granier, JJ .
PROPELLANTS EXPLOSIVES PYROTECHNICS, 2005, 30 (01) :53-62
[7]   Nano-scale tungsten oxides for metastable intermolecular composites [J].
Perry, WL ;
Smith, BL ;
Bulian, CJ ;
Busse, JR ;
Macomber, CS ;
Dye, RC ;
Son, SF .
PROPELLANTS EXPLOSIVES PYROTECHNICS, 2004, 29 (02) :99-105
[8]   Combustion wave speeds of nanocomposite Al/Fe2O3:: the effects of Fe2O3 particle synthesis technique [J].
Plantier, KB ;
Pantoya, ML ;
Gash, AE .
COMBUSTION AND FLAME, 2005, 140 (04) :299-309
[9]   Synthesis and reactivity of a super-reactive metastable intermolecular composite formulation of Al/KMnO4 [J].
Prakash, A ;
McCormick, AV ;
Zachariah, MR .
ADVANCED MATERIALS, 2005, 17 (07) :900-+
[10]   Effect of nanocomposite synthesis on the combustion performance of a ternary thermite [J].
Prentice, D ;
Pantoya, ML ;
Clapsaddle, BJ .
JOURNAL OF PHYSICAL CHEMISTRY B, 2005, 109 (43) :20180-20185