中国物理B ›› 2012, Vol. 21 ›› Issue (10): 106201-106201.doi: 10.1088/1674-1056/21/10/106201

• CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES • 上一篇    下一篇

Static strength of gold compressed up to 127 GPa

敬秋民, 吴强, 柳雷, 毕延, 张毅, 刘盛刚, 徐济安   

  1. Key Laboratory of Shock Wave and Detonation Physics, Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, China
  • 收稿日期:2012-03-12 修回日期:2012-04-25 出版日期:2012-09-01 发布日期:2012-09-01
  • 基金资助:
    Project supported by the Defense Industrial Technology Development Program (Grant No. B1520110001) and the Fund of Key Laboratory of Shock Wave and Detonation Physics of China (Grant No. 9140C6703031002).

Static strength of gold compressed up to 127 GPa

Jing Qiu-Min (敬秋民), Wu Qiang (吴强), Liu Lei (柳雷), Bi Yan (毕延), Zhang Yi (张毅), Liu Sheng-Gang (刘盛刚), Xu Ji-An (徐济安)   

  1. Key Laboratory of Shock Wave and Detonation Physics, Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, China
  • Received:2012-03-12 Revised:2012-04-25 Online:2012-09-01 Published:2012-09-01
  • Contact: Jing Qiu-Min E-mail:j_qm@163.com
  • Supported by:
    Project supported by the Defense Industrial Technology Development Program (Grant No. B1520110001) and the Fund of Key Laboratory of Shock Wave and Detonation Physics of China (Grant No. 9140C6703031002).

摘要: Gold powder is compressed non-hydrostatically up to 127 GPa in a diamond anvil cell (DAC), and its angle dispersive X-ray diffraction patterns are recorded. The compressive strength of gold is investigated in a framework of the lattice strain theory by the line shift analysis. The result shows that the compressive strength of gold increases continuously with the pressure up to 106 GPa and reaches 2.8 GPa at the highest experimental pressure (127 GPa) achieved in our study. This result is in good agreement with our previous experimental result in a relevant pressure range. The compressive strength of gold may be the major source of the error in the equation-of-state measurement in various pressure environments.

关键词: compressive strength, gold, diamond anvil cell, lattice strain theory

Abstract: Gold powder is compressed non-hydrostatically up to 127 GPa in a diamond anvil cell (DAC), and its angle dispersive X-ray diffraction patterns are recorded. The compressive strength of gold is investigated in a framework of the lattice strain theory by the line shift analysis. The result shows that the compressive strength of gold increases continuously with the pressure up to 106 GPa and reaches 2.8 GPa at the highest experimental pressure (127 GPa) achieved in our study. This result is in good agreement with our previous experimental result in a relevant pressure range. The compressive strength of gold may be the major source of the error in the equation-of-state measurement in various pressure environments.

Key words: compressive strength, gold, diamond anvil cell, lattice strain theory

中图分类号:  (Shape-memory effect; yield stress; superelasticity)

  • 62.20.fg
62.50.-p (High-pressure effects in solids and liquids) 07.35.+k (High-pressure apparatus; shock tubes; diamond anvil cells)