Simple method to determine equations of state of liquids in the 0–10 GPa range
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| Title: | Simple method to determine equations of state of liquids in the 0–10 GPa range |
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| Authors: | Klotz, S., Guarnelli, Y., Murata, K. |
| Contributors: | Klotz, Stefan |
| Source: | High Pressure Research. :1-9 |
| Publisher Information: | Informa UK Limited, 2025. |
| Publication Year: | 2025 |
| Subject Terms: | High pressure, diamond anvil cell, fluids, equation of state, [PHYS] Physics [physics] |
| Description: | We present a simple method for determining equations of state (densities) of liquids up to ~10 GPa based on a precise measurement of the volume of the gasket hole in a diamond anvil cell. Key ingredients are the use of a highly sensitive optical pressure gauge, in our case SrClF:Sm 2+ and ruby, the preparation of gaskets which maintain a well-defined geometry of the sample chamber, and the application of corrections due to elasticity of the diamonds. We show that, following a certain procedure, the method allows under favorable conditions measurements of the equations of state with a precision of 1-3%. Result on the equation of state of the 4:1 methanol-ethanol mixture as well as of Daphne fluids 7474 and 7676 are presented. Measurements on water to 5.5 GPa allow a direct evaluation of the precision of the method. |
| Document Type: | Article |
| File Description: | application/pdf |
| Language: | English |
| ISSN: | 1477-2299 0895-7959 |
| DOI: | 10.1080/08957959.2025.2557330 |
| Access URL: | https://hal.science/hal-05319798v1/document https://hal.science/hal-05319798v1 https://doi.org/10.1080/08957959.2025.2557330 |
| Accession Number: | edsair.doi.dedup.....d8808c0c7d008730b2ecb7a0ca7fef7f |
| Database: | OpenAIRE |
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Nájsť tento článok vo Web of Science | Abstract: | We present a simple method for determining equations of state (densities) of liquids up to ~10 GPa based on a precise measurement of the volume of the gasket hole in a diamond anvil cell. Key ingredients are the use of a highly sensitive optical pressure gauge, in our case SrClF:Sm 2+ and ruby, the preparation of gaskets which maintain a well-defined geometry of the sample chamber, and the application of corrections due to elasticity of the diamonds. We show that, following a certain procedure, the method allows under favorable conditions measurements of the equations of state with a precision of 1-3%. Result on the equation of state of the 4:1 methanol-ethanol mixture as well as of Daphne fluids 7474 and 7676 are presented. Measurements on water to 5.5 GPa allow a direct evaluation of the precision of the method. |
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| ISSN: | 14772299 08957959 |
| DOI: | 10.1080/08957959.2025.2557330 |