European Journal of Mineralogy
European Journal of Mineralogy
European Journal of Mineralogy
Articles | Volume 36, issue 3
Articles | Volume 36, issue 3
https://doi.org/10.5194/ejm-36-473-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/ejm-36-473-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 36, issue 3
Research article
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14 Jun 2024
Research article | Highlight paper |  | 14 Jun 2024

The use of MgO–ZnO ceramics to record pressure and temperature conditions in the piston–cylinder apparatus

Nicholas Farmer and Hugh St. C. O'Neill

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Latest update: 05 Nov 2025
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Short summary
The piston–cylinder apparatus is widely used to investigate rock properties at the conditions of the interior of the Earth, but uncertainty in its calibration of pressure persists, with substantial differences between laboratories. We use a ceramic of magnesium and zinc oxides to measure the conditions experienced by a sample. Routine use of such ceramics provides an archive of experimental conditions, enables interlaboratory comparisons, and resolves long-standing controversies in calibration.
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Probing the Earth: experiments on and for our planet