In situ observation of pressure-induced electrical resistance changes in zirconium: pressure calibration points for the large volume press at 8 and 35 GPa

Simultaneous in situ pressure-resistance measurements were carried out up to 40 GPa using a multianvil apparatus with synchrotron-based X-ray diffraction (XRD) measurements. Pressure-induced electrical resistance changes in zirconium were measured at ambient temperatures and two discontinuities were...

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Bibliographic Details
Published inHigh pressure research Vol. 31; no. 3; p. 409
Main Authors Tange, Yoshinori, Takahashi, Eiichi, Funakoshi, Ken-ichi
Format Journal Article
LanguageEnglish
Published Abingdon Taylor & Francis Ltd 01.09.2011
Subjects
Calibration
Diffraction
Electric resistance
Phase transitions
Pressure
Zirconium
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Summary:Simultaneous in situ pressure-resistance measurements were carried out up to 40 GPa using a multianvil apparatus with synchrotron-based X-ray diffraction (XRD) measurements. Pressure-induced electrical resistance changes in zirconium were measured at ambient temperatures and two discontinuities were observed around the α-ω and ω-β structural phase transitions. The transition pressures were strictly determined from simultaneous measurements of the electrical resistance and in situ XRD as 7.96±0.16 and 34.5±0.3 GPa, respectively, using an equation of state for gold as the pressure scale. The precisely determined transition pressures are available for room temperature pressure calibration points for large volume presses installed at offline laboratories. [PUBLICATION ABSTRACT]
ISSN:0895-7959
1477-2299