Preparation and characterization of Al/B/Fe_2O_3 nanothermites

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 diffractio...

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Published in:中国科学：化学英文版 2014 (6), p.797-802
Main Author: SHEN LianHua LI GuoPing LUO YunJun GAO Kun GE Zhen
Format: Article
Language:English
Subjects:
Fe2O3
X射线衍射
扫描电子显微镜
热重量分析
示差扫描量热法
纳米铝
表征
超声波方法
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description 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.
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subjects Fe2O3
X射线衍射
扫描电子显微镜
热重量分析
示差扫描量热法
纳米铝
表征
超声波方法
title Preparation and characterization of Al/B/Fe_2O_3 nanothermites
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