| Original Articles |
|
|
|
|
Electrical Conductivity of ε-Iron under Shock Compression up to 208GPa |
| BI Yan1;TAN Hua1;JING Fu-Qian1,2 |
| 1Laboratory for Shock Wave and Detonation Physics Research, Institute of Fluid Physics, China Academy of Engineering Physics, P.O. Box 919-111, Mianyang 621900
2Institute of Physics, Southwest Jiaotong University, Chengdu 610031
|
|
| Cite this article: |
|
BI Yan, TAN Hua, JING Fu-Qian 2002 Chin. Phys. Lett. 19 243-245 |
|
|
|
|
Abstract The electrical conductivity of shock-compressed iron was measured up to 208GPa by using an improved design in experiment assembly in which the iron sample was encapsulated in a single-crystal sapphire cell. High-pressure shock compressions were generated by the plate impact technique with the two-stage light-gas gun. The measured conductivity of iron varies from 1.45 x 104Ω-1cm-1 at 101GPa and 2010K to 7.65 x 103Ω-1cm-1 at 208GPa and 5220K. After examining these data together with those reported, we found that the Bloch-Grüneisen expression is still valid at high pressures and temperatures, even up to 208GPa and 5220K, at least for ε-iron, which is significant in the filed of condensed matter physics and deep interior earth science.
|
| Keywords:
62.50.+p
64.30.+t
|
|
|
Published: 01 February 2002
|
|
|
|
|
|
|
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
