摘要为了满足点火药在微尺度下燃烧稳定性和燃速的可控性，本文对氧化铋（Bi2O3)这一安全低毒的氧化剂进行研究，主要的研究内容如下：

   （1）采用不同的方法，制备了用油酸处理的微纳米氧化铋与花球型微纳米氧化铋，并对其进行XRD及电镜分析，发现油酸处理制备纳米氧化铋的方案重复性较差，且颗粒粒度在10μm左右，而花球型方案制备的纳米氧化铋，粒度在100nm左右，分散良好，因此选择花球型方案制备出的纳米氧化铋作为自组装氧化铋铝热剂的反应试剂。64336

   （2）对上述制备的纳米氧化铋与纳米铝粉进行自组装，制备了Al与Bi2O3配比分别为1.0，1.2,1.4,1.6的四种不同配比的纳米氧化铋铝热剂。

   （3）对花球型纳米氧化铋铝热剂、简单混合的氧化铋普通铝热剂分别进行燃烧，发现采取自组装技术制备的铝热剂的感度和威力大于普通铝热剂。

毕业论文关键词 ：MIC， 氧化铋，铝热剂，自组装

毕业设计说明书（论文）外文摘要

Title      The preparation and performance study of      high performance  MIC ignition powder          

Abstract   In order to meet the requirement of combustion stability and controllability of ignition powder at microscale , bismuth oxide powder, which is proved to be safe and harmfulless is prepared in this paper,the main contents are as follows:

   (1)By using different methods, micro nano bismuth oxide processed by oleic acid and flower shape bismuth oxide nanoparticles are prepared , and the XRD and SEM analysis show that bismuth oxide nanoparticles processed by oleic acid have a poor reproducibility, and the particle size is at 10μm, however the flower shape nanocrystalline bismuth oxide,whose particle size is about 100nm, which have a good dispersion, thereby flower shape bismuth oxide was selected as the reagents of self-assembled bismuth oxide.

   (2)Nano flower bismuth oxide was used to asseble with nano-aluminum ,and four different proportions of bismuth oxide nano-thermite was fabricated by us .the proportion of Al and Bi2O3 were 1.0,1.2,1.4,1.6 .

   (3)Nano flower bismuth oxide thermite performance was evaluated with the buring experiments by comparing simple-mixing and self-assembly thermites.we find that the thermite prepared by self-assembly technology have a better performance in sensitivity and power .

Keywords  :MIC,bismuth oxide, thermit,self-assembly.

中文摘要I

外文摘要 II

  1  绪论1

    1.1 研究目的及意义 1 

    1.2微纳米含能材料制备方法 1

      1.2.1利用超声处理的方法法 1

      1.2.2溶胶-凝胶法2

      1.2.3喷雾干燥法2

      1.2.4沉淀法2

      1.2.5冷冻干燥法3

      1.2.6沉积法3

      1.2.7分子工程法3

    1.3 铝热剂  4 

    1.4自组装 4  

    1.5本文的主要研究工作 5

 2.纳米氧化铋的制备6

    2.1基于油酸处理的氧化铋的制备6

      2.1.1仪器与试剂6

      2.1.2工艺流程6

      2.1.3检测方法7

      2.1.4结果分析7

    2.2花球型纳米氧化铋的制备10

      2.2.1试剂与仪器10

      2.2.2工艺流程11

      2.2.3性能表征11

      2.2.4结果分析11