留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名
邮箱
手机号码
标题
留言内容
验证码
Volume 14 Issue S1
Jun.  2007
数据统计

分享

计量
  • 文章访问数:  172
  • HTML全文浏览量:  50
  • PDF下载量:  7
  • 被引次数: 0
Keqiang Qiu, Bo Yu,  and Yinglei Ren, Porous bulk metallic glass fabricated by powder hot pressing, J. Univ. Sci. Technol. Beijing, 14(2007), No. S1, pp. 59-63. https://doi.org/10.1016/S1005-8850(07)60110-8
Cite this article as:
Keqiang Qiu, Bo Yu,  and Yinglei Ren, Porous bulk metallic glass fabricated by powder hot pressing, J. Univ. Sci. Technol. Beijing, 14(2007), No. S1, pp. 59-63. https://doi.org/10.1016/S1005-8850(07)60110-8
引用本文 PDF XML SpringerLink
Materials

Porous bulk metallic glass fabricated by powder hot pressing

  • 通讯作者:

    Keqiang Qiu    E-mail: kqqiu@yahoo.com.cn

  • A synthesis method for the production of porous bulk metallic glass (BMG) was introduced. This method utilizes the superplastic forming ability of amorphous powder in the supercooled liquid (SCL) state and intenerating salt mixture as a placeholder to produce BMG foam by using a hot die pressing method. Scanning electron microscope (SEM), X-ray diffraction (XRD) and differential scanning calorimetry (DSC) were employed to characterize the morphologies of foaming structure, the crystallization and the percentage of crystallization of the as-produced porous BMG. The results suggested that the formation of porous structure by superplastic forming process is feasible. Good bonding effect was observed between amorphous powder particles. Less than 6.5% of crystalline phases were formed during hot pressing, and less than 5.5% of residual salt was enclosed in the foam. To remove any residual salt particles, salt preforms with three-dimensional network and good connectivity is necessary.
  • Materials

    Porous bulk metallic glass fabricated by powder hot pressing

    + Author Affiliations
    • A synthesis method for the production of porous bulk metallic glass (BMG) was introduced. This method utilizes the superplastic forming ability of amorphous powder in the supercooled liquid (SCL) state and intenerating salt mixture as a placeholder to produce BMG foam by using a hot die pressing method. Scanning electron microscope (SEM), X-ray diffraction (XRD) and differential scanning calorimetry (DSC) were employed to characterize the morphologies of foaming structure, the crystallization and the percentage of crystallization of the as-produced porous BMG. The results suggested that the formation of porous structure by superplastic forming process is feasible. Good bonding effect was observed between amorphous powder particles. Less than 6.5% of crystalline phases were formed during hot pressing, and less than 5.5% of residual salt was enclosed in the foam. To remove any residual salt particles, salt preforms with three-dimensional network and good connectivity is necessary.
    • loading

    Catalog


    • /

      返回文章
      返回