Abstract
Ultrasonic measurements were conducted on single-crystal gold at ambient condition and hydrostatic pressures up to 8 GPa at room temperature in a Kawai-type multi-anvil apparatus. The P-wave velocities measured at high pressures were in good agreement with Daniels and Smith's ultrasonic study. The three independent elastic constants of gold at ambient condition were determined to be C 11=192.7 GPa, C 12=162.9 GPa, and C 44=42.4 GPa. On the basis of an analysis of previous elastic data and the present ultrasonic data, the pressure derivatives of three elastic constants were estimated to be C11 = 7.12, C12 = 6.24, and C44 = 1.82. The calculated values of isothermal bulk modulus (K T0) and its pressure derivatives (K′T0) are K T0 = 166.44 GPa and K′T0 = 6.56. This indicates that Anderson et al.'s model of equation of state of gold might underestimates pressure about 1 GPa at pressure around 23 GPa and ambient temperature. Our results explained the discrepancies among the models of equation of state of gold proposed previously.
| Original language | English |
|---|---|
| Pages (from-to) | 1600-1606 |
| Number of pages | 7 |
| Journal | Chinese Science Bulletin |
| Volume | 52 |
| Issue number | 12 |
| DOIs | |
| Publication status | Published - Jun 2007 |
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Keywords
- Elasticity
- High pressure
- Hydrostatic condition
- Single-crystal gold
- Ultrasonic measurement
ASJC Scopus subject areas
- General
Cite this
Ultrasonic measurements of single-crystal gold under hydrostatic pressures up to 8 GPa in a Kawai-type multi-anvil apparatus. / Song, MaoShuang; Yoneda, Akira; Ito, Eiji.
In: Chinese Science Bulletin, Vol. 52, No. 12, 06.2007, p. 1600-1606.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Ultrasonic measurements of single-crystal gold under hydrostatic pressures up to 8 GPa in a Kawai-type multi-anvil apparatus
AU - Song, MaoShuang
AU - Yoneda, Akira
AU - Ito, Eiji
PY - 2007/6
Y1 - 2007/6
N2 - Ultrasonic measurements were conducted on single-crystal gold at ambient condition and hydrostatic pressures up to 8 GPa at room temperature in a Kawai-type multi-anvil apparatus. The P-wave velocities measured at high pressures were in good agreement with Daniels and Smith's ultrasonic study. The three independent elastic constants of gold at ambient condition were determined to be C 11=192.7 GPa, C 12=162.9 GPa, and C 44=42.4 GPa. On the basis of an analysis of previous elastic data and the present ultrasonic data, the pressure derivatives of three elastic constants were estimated to be C11 = 7.12, C12 = 6.24, and C44 = 1.82. The calculated values of isothermal bulk modulus (K T0) and its pressure derivatives (K′T0) are K T0 = 166.44 GPa and K′T0 = 6.56. This indicates that Anderson et al.'s model of equation of state of gold might underestimates pressure about 1 GPa at pressure around 23 GPa and ambient temperature. Our results explained the discrepancies among the models of equation of state of gold proposed previously.
AB - Ultrasonic measurements were conducted on single-crystal gold at ambient condition and hydrostatic pressures up to 8 GPa at room temperature in a Kawai-type multi-anvil apparatus. The P-wave velocities measured at high pressures were in good agreement with Daniels and Smith's ultrasonic study. The three independent elastic constants of gold at ambient condition were determined to be C 11=192.7 GPa, C 12=162.9 GPa, and C 44=42.4 GPa. On the basis of an analysis of previous elastic data and the present ultrasonic data, the pressure derivatives of three elastic constants were estimated to be C11 = 7.12, C12 = 6.24, and C44 = 1.82. The calculated values of isothermal bulk modulus (K T0) and its pressure derivatives (K′T0) are K T0 = 166.44 GPa and K′T0 = 6.56. This indicates that Anderson et al.'s model of equation of state of gold might underestimates pressure about 1 GPa at pressure around 23 GPa and ambient temperature. Our results explained the discrepancies among the models of equation of state of gold proposed previously.
KW - Elasticity
KW - High pressure
KW - Hydrostatic condition
KW - Single-crystal gold
KW - Ultrasonic measurement
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UR - http://www.scopus.com/inward/citedby.url?scp=34547243686&partnerID=8YFLogxK
U2 - 10.1007/s11434-007-0240-y
DO - 10.1007/s11434-007-0240-y
M3 - Article
AN - SCOPUS:34547243686
VL - 52
SP - 1600
EP - 1606
JO - Science Bulletin
JF - Science Bulletin
SN - 2095-9273
IS - 12
ER -