GHz ultrasonic velocity measurement in diamond anvil cell

Akira Yoneda, Shin Ichiro Kobayashi, Seiji Kamada

Research output: Contribution to journalArticle

Abstract

GHz ultrasonic velocity measurement has been developed up to ~15 GPa in a diamond anvil cell (DAC). In order to perform the GHz ultrasonic measurement, both P and S wave buffer rods were manufactured through sputtering ZnO piezoelectric film on single crystal rods, such as sapphire, rutile (TiO2), and YAG. Several technical breakthroughs have been achieved before observing stable signals from the specimen squeezed in DAC: (1) Wiping by aqueous ammonia on the contact surfaces enhances transmissibility of GHz waves from the buffer rod to the diamond anvil. (2) Cleaning with lathery detergent and water jet effectively removes grime on the rear surface of the diamond. (3) A steel ball supporter allows effortless adjustment of contact between the buffer rod and the diamond. As a result, we succeeded in demonstrating the GHz-DAC ultrasonic velocity measurement on KCl and natural olivine samples.

Original languageEnglish
Pages (from-to)144-155
Number of pages12
JournalReview of High Pressure Science and Technology/Koatsuryoku No Kagaku To Gijutsu
Volume29
Issue number2
DOIs
Publication statusPublished - Jan 1 2019

Fingerprint

Ultrasonic velocity measurement
Diamond
anvils
velocity measurement
Diamonds
ultrasonics
diamonds
rods
cells
Buffers
buffers
hydraulic jets
Ultrasonic measurement
Olivine
detergents
Aluminum Oxide
Steel
Detergents
Ammonia
P waves

Keywords

  • Acoustic velocity
  • Buffer rod
  • DAC
  • Elasticity
  • GHz
  • Travel time
  • Ultrasonic velocity

ASJC Scopus subject areas

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

Cite this

GHz ultrasonic velocity measurement in diamond anvil cell. / Yoneda, Akira; Kobayashi, Shin Ichiro; Kamada, Seiji.

In: Review of High Pressure Science and Technology/Koatsuryoku No Kagaku To Gijutsu, Vol. 29, No. 2, 01.01.2019, p. 144-155.

Research output: Contribution to journalArticle

Yoneda, Akira ; Kobayashi, Shin Ichiro ; Kamada, Seiji. / GHz ultrasonic velocity measurement in diamond anvil cell. In: Review of High Pressure Science and Technology/Koatsuryoku No Kagaku To Gijutsu. 2019 ; Vol. 29, No. 2. pp. 144-155.
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