2014年
Seismic attenuation measurement by cyclic loading under high pressure and temperature
Review of High Pressure Science and Technology/Koatsuryoku No Kagaku To Gijutsu
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- ,
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- 巻
- 24
- 号
- 2
- 開始ページ
- 126
- 終了ページ
- 135
- DOI
- 10.4131/jshpreview.24.126
An experimental method to study the seismic attenuation factor (Q-1) and anelastic properties of materials at high pressure and high temperature has been established by using the multianvil high-pressure deformation device (D-DIA) and a synchrotron X-ray radiography at SPring8. Time resolved images of the sample and reference material provide their strain as a function of time during cyclic loading. Attenuation is determined as the tangent of the angle of phase lag between the sample and the reference material. A newly installed short period sinusoidal cyclic loading oil pressure system enable us to determine minimal strain of the sample in a wide frequency range from 2 to 0.01 hertz on olivine aggregates at 1 GPa and up to 1673 K. The detectable minimum strain is around 5×10-5. Several test experiments exhibited resolvable Q-1 (10-2) above 1273 K. The results are generally consistent with previously reported data.
- リンク情報
- ID情報
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- DOI : 10.4131/jshpreview.24.126
- ISSN : 0917-639X
- eISSN : 1348-1940
- SCOPUS ID : 84940361754