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NEWDIA4Planet – MSCA Project

NEWDIA4Planet – MSCA Project

Individual Fellowship project supported by Marie Skłodowska-Curie actions

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  1. NEWDIA4Planet – MSCA Project
  2. NEWDIA4Planet: Research
  3. Work Package 4: Scientific application

Work Package 4: Scientific application

High-pressure melting experiments on H2O ice were conducted using the new IHDAC. Two independent melting experiments were performed using Re and Pt-Ir alloy heaters. Melting of H2O was identified based on the Raman spectra measured before and after heating. We have observed change in Raman spectra resulted from the chemical reaction between the heater and the melted H2O, i.e. water. The melting temperatures were determined to be 1500 K and 1493 K at 42 GPa and 44 GPa, respectively. The present result coincide with one of the highest estimates of the reported melting curves. This supports the existence of solid H2O (ice) in Uranus and Neptune, which could lead us to unlock the mystery of their complex magnetic fields.

 

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This project has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No. 753858.

 

Copyright Emiko Sugimura-Komabayashi

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