高活性 AlMg/ KMnO4铝热剂的性能研究

doi:10.3969/j.issn.1000-1093.2013.09.017

兵工学报 ›› 2013, Vol. 34 ›› Issue (9): 1161-1166.doi: 10.3969/j.issn.1000-1093.2013.09.017

高活性 AlMg/ KMnO₄铝热剂的性能研究

郑宝明¹, 姜炜², 陈伟², 李凤生²

1. 中国兵器科学研究院, 北京100089; 2. 南京理工大学国家特种超细粉体工程技术研究中心, 江苏南京210094

收稿日期:2012-08-27 修回日期:2012-08-27 上线日期:2013-11-11
作者简介:郑宝明(1978—),男,副研究员。
基金资助:
总装备部预先研究支撑基金项目(62201070804)

Performance Study on Super-reactive AlMg / KMnO₄ Thermites

ZHENG Bao-ming¹, JIANG Wei², CHEN Wei², LI Feng-sheng²

1. Ordrance Science and Research Academy of China, Beijing 100089, China; 2. National Special Superfine Powder Engineering Research Center, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China

Received:2012-08-27 Revised:2012-08-27 Online:2013-11-11

摘要/Abstract

摘要：

采用机械球磨法制备了不同比例的AlMg 合金,采用超声分散法制备了AlMg/ KMnO₄ 铝热剂,该种铝热剂有希望成为一种有潜力应用于反应材料和火炸药领域的含能材料。通过DSC、点火温度和燃烧产物分析,对AlMg/ KMnO₄ 进行了表征分析。结果表明:随着镁含量的增加,AlMg/KMnO₄点火温度明显降低,从723 K 降低至493 K,反应活性得到大幅提高;在AlMg/ KMnO₄ 铝热剂的燃烧产物中出现了Al₂O₃、MgO 以及Mn 单质,可知Mn 单质是AlMg/ KMnO₄ 发生的铝热反应生成的;综合DSC 曲线还可以进一步得出与AlMg 合金发生反应的是KMnO₄ 的分解产物而不是KMnO₄.

关键词: 兵器科学与技术, 金属材料, 材料实验, 航空航天材料

Abstract:

Different mass fractions of AlMg alloys are prepared by mechanical ball milling. AlMg/ KMnO₄ thermites are prepared by sonication dispersion method. These thermites could be an energetic material in the field of reactive materials and explosives. AlMg/ KMnO₄ thermites with different Al/ Mg ratios are investigated by differential scanning calorimetry (DSC), ignition and combustion measurements respectively. The results show that the reaction temperatures of AlMg/ KMnO₄ decrease obviously with the higher Mg contents, the ignition temperatures decrease from 723 K to 493 K, indicating that the thermal reactivity of AlMg/ KMnO₄ thermites is better than that of Al/ KMnO₄. The combustion products of AlMg/ KMnO4 thermites contain Al₂O₃, MgO and Mn, thus Mn is produced by the thermite reaction of AlMg/ KMnO₄.AlMg alloys react with the decomposited product of KMnO₄.

Key words: ordnance science and technology, metallic material, materials experiment, aerospace material

中图分类号:

TG156

郑宝明, 姜炜, 陈伟, 李凤生. 高活性 AlMg/ KMnO₄铝热剂的性能研究[J]. 兵工学报, 2013, 34(9): 1161-1166.

ZHENG Bao-ming, JIANG Wei, CHEN Wei, LI Feng-sheng. Performance Study on Super-reactive AlMg / KMnO₄ Thermites[J]. Acta Armamentarii, 2013, 34(9): 1161-1166.

参考文献

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高活性 AlMg/ KMnO₄铝热剂的性能研究

Performance Study on Super-reactive AlMg / KMnO₄ Thermites

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