Recent Studies on Ultrasonic Measurements under High Pressure and a New Analytical Methodology for Ultrasonic Velocity Data at Simultaneous High Pressure and High Temperature

Akira Yoneda

Research output: Contribution to journalArticle

Abstract

Basic techniques for ultrasonic measurements are discussed with emphasis placed on accuracy of sound velocity. Recent ultrasonic studies under high pressure are briefly reviewed, and a new analytical methodology called the complete thermodynamic equation of state is introduced. The potential of the method is demonstrated by analyzing a synthetic model data set. The results suggest that the method can be used to constrain thermodynamic parameters, such as heat capacity and thermal expansivity, up to pressures of the core-mantle boundary using experimental data collected only up to 10 Gpa.

Original languageEnglish
Pages (from-to)51-58
Number of pages8
JournalReview of High Pressure Science and Technology/Koatsuryoku No Kagaku To Gijutsu
Volume9
Issue number1
DOIs
Publication statusPublished - 1999

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Keywords

  • Acoustics
  • Complete thermodynamic equation of state
  • Elasticity
  • GHz interferometry
  • High pressure
  • High temperature
  • Pressure scale
  • Ultrasonic

ASJC Scopus subject areas

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

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