冲击压缩下金属的电导率测量

毕延 谭华 经福谦 赵敏光

毕延, 谭华, 经福谦, 赵敏光. 冲击压缩下金属的电导率测量[J]. 高压物理学报, 2003, 17(1): 1-7 . doi: 10.11858/gywlxb.2003.01.001
引用本文: 毕延, 谭华, 经福谦, 赵敏光. 冲击压缩下金属的电导率测量[J]. 高压物理学报, 2003, 17(1): 1-7 . doi: 10.11858/gywlxb.2003.01.001
BI Yan, TAN Hua, JING Fu-Qian, ZHAO Min-Guang. Electrical Conductivity Measurements for Metals under Shock Compression[J]. Chinese Journal of High Pressure Physics, 2003, 17(1): 1-7 . doi: 10.11858/gywlxb.2003.01.001
Citation: BI Yan, TAN Hua, JING Fu-Qian, ZHAO Min-Guang. Electrical Conductivity Measurements for Metals under Shock Compression[J]. Chinese Journal of High Pressure Physics, 2003, 17(1): 1-7 . doi: 10.11858/gywlxb.2003.01.001

冲击压缩下金属的电导率测量

doi: 10.11858/gywlxb.2003.01.001
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    通讯作者:

    毕延

Electrical Conductivity Measurements for Metals under Shock Compression

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    Corresponding author: BI Yan
  • 摘要: 探索了一种在兆巴压力冲击压缩下测量金属电导率的新方法四电极垂向引线法,并用刻槽单晶蓝宝石作绝缘腔体,以消除分流效应对测量结果的影响。用二级轻气炮作为加载手段,测量了铁在终态平衡压力为101~208 GPa压力区间内的电导率(电导率从1.45106 S/m变化到7.65105 S/m)。将测量铁电导率的压力范围扩展到了200 GPa以上。实验结果表明,关于金属电导率的Bloch-Grneisen公式在高达200 GPa冲击压力下仍然有效(对于-铁)。

     

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出版历程
  • 收稿日期:  2002-07-25
  • 修回日期:  2002-09-23
  • 发布日期:  2003-03-05

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