Solid-liquid hybrid assembly for ultrasonic elasticity measurements under hydrostatic conditions of up to 8 GPa in a Kawai-type multianvil apparatus

M. Song, Akira Yoneda, E. Ito

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

A solid-liquid hybrid assembly has been designed for ultrasonic elasticity measurements of materials under hydrostatic conditions in a Kawai-type multianvil apparatus. In the assembly, a tungsten-carbide cubic anvil served as the buffer rod for the acoustic signals. The transducer and sample were mounted on two diagonally opposite truncated corners of the buffer-rod anvil. The sample was immersed in a liquid cell filled with a liquid pressure medium, a methanol-ethanol mixture (4:1 in volume), which produced hydrostatic conditions for the sample. The pressure was monitored with a bismuth pressure calibrant inside the liquid cell. Preliminary experiments using single-crystal MgO, polycrystal alumina, and silicate glass samples were successfully conducted up to 8 GPa. This assembly is especially useful for precise elasticity measurements of single-crystal samples under hydrostatic compression.

Original languageEnglish
Article number033906
JournalReview of Scientific Instruments
Volume76
Issue number3
DOIs
Publication statusPublished - Mar 2005

Fingerprint

hydrostatics
Elasticity
elastic properties
assembly
ultrasonics
Ultrasonics
Liquids
liquids
anvils
Single crystals
rods
buffers
Tungsten carbide
Polycrystals
Bismuth
tungsten carbides
Silicates
single crystals
Transducers
polycrystals

ASJC Scopus subject areas

  • Instrumentation
  • Physics and Astronomy (miscellaneous)

Cite this

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abstract = "A solid-liquid hybrid assembly has been designed for ultrasonic elasticity measurements of materials under hydrostatic conditions in a Kawai-type multianvil apparatus. In the assembly, a tungsten-carbide cubic anvil served as the buffer rod for the acoustic signals. The transducer and sample were mounted on two diagonally opposite truncated corners of the buffer-rod anvil. The sample was immersed in a liquid cell filled with a liquid pressure medium, a methanol-ethanol mixture (4:1 in volume), which produced hydrostatic conditions for the sample. The pressure was monitored with a bismuth pressure calibrant inside the liquid cell. Preliminary experiments using single-crystal MgO, polycrystal alumina, and silicate glass samples were successfully conducted up to 8 GPa. This assembly is especially useful for precise elasticity measurements of single-crystal samples under hydrostatic compression.",
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