爆轰合成氧化亚铁掺杂的二氧化硅包覆铁纳米颗粒

王小红 孔令杰 闫鸿浩

王小红, 孔令杰, 闫鸿浩. 爆轰合成氧化亚铁掺杂的二氧化硅包覆铁纳米颗粒[J]. 高压物理学报, 2018, 32(2): 023402. doi: 10.11858/gywlxb.20170546
引用本文: 王小红, 孔令杰, 闫鸿浩. 爆轰合成氧化亚铁掺杂的二氧化硅包覆铁纳米颗粒[J]. 高压物理学报, 2018, 32(2): 023402. doi: 10.11858/gywlxb.20170546
WANG Xiaohong, KONG Lingjie, YAN Honghao. Detonation Synthesis of Ferrous Oxide Doped Silica Coated Iron Nanoparticles[J]. Chinese Journal of High Pressure Physics, 2018, 32(2): 023402. doi: 10.11858/gywlxb.20170546
Citation: WANG Xiaohong, KONG Lingjie, YAN Honghao. Detonation Synthesis of Ferrous Oxide Doped Silica Coated Iron Nanoparticles[J]. Chinese Journal of High Pressure Physics, 2018, 32(2): 023402. doi: 10.11858/gywlxb.20170546

爆轰合成氧化亚铁掺杂的二氧化硅包覆铁纳米颗粒

doi: 10.11858/gywlxb.20170546
基金项目: 

国家自然科学基金 10902023

国家自然科学基金 10972051

国家自然科学基金 11272081

详细信息
    作者简介:

    王小红(1980—), 男, 博士, 副教授, 主要从事特种炸药与特种爆破研究.E-mail:wangxh_yy@sina.com

    通讯作者:

    闫鸿浩(1975—), 男, 副教授, 博士生导师, 主要从事爆炸理论以及爆炸效应研究. E-mail:honghaoyan@vip.sina.com

  • 中图分类号: O389

Detonation Synthesis of Ferrous Oxide Doped Silica Coated Iron Nanoparticles

  • 摘要: 用一定比例的硝酸铁盐、硅酸钠盐、无水乙醇与黑索金混合制成塑性炸药。在密闭容器中以氩气为保护气, 通过爆轰合成氧化亚铁掺杂的二氧化硅包覆铁纳米颗粒。采用X射线衍射(XRD)、透射电镜(TEM)及振动样品磁强计(VSM)对爆轰产物的组成成分、形态结构以及磁性进行测试。实验结果表明, 爆轰产物以金属颗粒为核、二氧化硅为包覆层的壳/核结构形式出现, 颗粒尺寸在60 nm左右。通过分析爆轰产物的磁性曲线可知, 在室温下爆轰产物具有较高的剩磁比和矫顽力, 表现出弱的铁磁性, 是优良的储磁材料。

     

  • 图  爆轰产物的XRD图谱

    Figure  1.  XRD spectra of detonation products

    图  爆轰产物的TEM图

    Figure  2.  TEM images of detonation products

    图  爆轰产物的磁滞回线(H:磁场强度; σ:磁化强度)

    Figure  3.  Magnetic hysteresis loop of detonation products (H:Magnetic field intensity; σ:Magnetization)

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出版历程
  • 收稿日期:  2017-03-07
  • 修回日期:  2017-03-30

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