Isothermal equation of state and high-pressure phase transitions of synthetic meridianiite (MgSO4·11D2O) determined by neutron powder diffraction and quasielastic neutron spectroscopy

Fortes, A.D.; Fernandez-Alonso, F.; Tucker, M.; Wood, I.G.

doi:10.1107/S2052520616018254

Acta Crystallographica Section B
Acta Crystallographica
Section B STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS

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Figure 9
Diffraction patterns acquired in the Paris–Edinburgh press from meridianiite (the Pb pressure marker is indicated with an asterisk). The lowermost pattern shows the expected peaks from meridianiite, which transform to a new phase on increasing the pressure from 0.77 to 0.91 GPa at 240 K. Further warming (the top five data sets) show the development of a new diffraction pattern, with signs of incipient melting close to room temperature at 1.1 GPa manifested by a reduction in the intensity of all Bragg peaks, which is more substantial for the inferred contributions from ice VI.

STRUCTURAL SCIENCE
CRYSTAL ENGINEERING
MATERIALS

ISSN: 2052-5206

Volume 73| Part 1| February 2017| Pages 33-46

https://doi.org/10.1107/S2052520616018254

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