Seismic attenuation measurement by cyclic loading under high pressure and temperature

Takashi Yoshino, Daisuke Yamazaki, Yuji Higo, Ken Ichi Funakoshi

    Research output: Contribution to journalArticlepeer-review

    2 Citations (Scopus)

    Abstract

    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.

    Original languageEnglish
    Pages (from-to)126-135
    Number of pages10
    JournalReview of High Pressure Science and Technology/Koatsuryoku No Kagaku To Gijutsu
    Volume24
    Issue number2
    DOIs
    Publication statusPublished - 2014

    Keywords

    • D-DIA
    • Q value
    • Seismic attenuation
    • Shear modulus
    • Short period
    • X-ray radiography

    ASJC Scopus subject areas

    • Chemistry(all)
    • Materials Science(all)
    • Condensed Matter Physics

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