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Pressure buffering in a diamond anvil cell

Published online by Cambridge University Press:  05 July 2018

T. Arlt  and
R. J. Angel
T. Arlt*
Affiliation:
Bayerisches Geoinstitut, Universität Bayreuth, D 95440 Bayreuth, Germany
R. J. Angel
Affiliation:
Bayerisches Geoinstitut, Universität Bayreuth, D 95440 Bayreuth, Germany
*
*E-mail: arlt@gmx.ch
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Abstract

The clinopyroxenes kanoite and spodumene were studied by single-crystal X-ray diffraction in a diamond anvil cell (DAC) at room temperature. At the displacive phase transitions between the C2/c and P21/c polymorphs both phases coexist within the same crystal. In this two-phase region the pressure in the DAC remains constant. The experimental results demonstrate that pressure buffering at first-order phase transitions can occur in the DAC.

Keywords

Pressure bufferingdiamond anvil cellphase transitionsingle-crystal X-ray diffractionclinopyroxenekanoitespodumene
Type
Research Article
Information
Mineralogical Magazine , Volume 64 , Issue 2 , April 2000 , pp. 241 - 245
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 2000

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