Hydrates under pressure - new insights from sulfuric acid hydrates

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dc.contributor.authorMaynard-Casely, HEen_AU
dc.contributor.authorHattori, Ten_AU
dc.contributor.authorSano-Furukawa, Aen_AU
dc.contributor.authorMachida, Sen_AU
dc.contributor.authorKomatsu, Ken_AU
dc.date.accessioned2021-11-01T04:33:29Zen_AU
dc.date.available2021-11-01T04:33:29Zen_AU
dc.date.issued2016-02-04en_AU
dc.date.statistics2021-09-22en_AU
dc.description.abstractHydrates are a rich and diverse class of materials that display a wide range of structures and properties – a feature that is only exaggerated when they are subjected to high-pressures. Consequently, these have implications on our understanding of many outer solar system bodies, where hydrates are amongst the dominant materials found there. For Europa and Ganymede, two moons under intense investigation from past and future space missions, their surfaces seen to be mostly water-ice and hydrates. Despite the apparent ‘simplicity’ of these materials, we still observe very complex geological formations on these moons – including subduction. Hence, we need to understand the transformations of candidate surface materials under a range of pressure/temperature conditions in order to accurately explain the formations on these icy surfaces. One hydrate candidate material for the surfaces of these moons are sulfuric acid hydrates, formed from radiolytic sulfur (from Io) reacting with the surface ice. Sulfuric acid hydrates have already been established to have a complex phase diagram with composition. We have now used the Mito cell at the PLANET instrument to undertake the first investigation of the high-pressure behaviour of the water rich sulfuric acid hydrates. Compressing at 100 K and 180 K we see that the hemitriskaidekahydrate becomes the stable water-rich hydrate and observe some interesting relaxation behaviour in this material at pressure, which could have significant consequences for the interiors of Ganymede.en_AU
dc.identifier.citationMaynard-Casely, H., Hattori, T., Sano-Furukawa, A., Machida, S., & Komatsu, K. (2016). Hydrates under pressure - new insights from sulfuric acid hydrates. Paper presented to the 40th Annual Condensed Matter and Materials Meeting' Charles Sturt University, Wagga Wagga, NSW, 2nd February – 5th February, 2016, (pp. 48). Retrieved from: https://physics.org.au/wp-content/uploads/cmm/2016/Wagga_2016_Conference_Handbook.pdfen_AU
dc.identifier.conferenceenddate5 February 2016en_AU
dc.identifier.conferencename40th Annual Condensed Matter and Materials Meetingen_AU
dc.identifier.conferenceplaceWagga Wagga, NSWen_AU
dc.identifier.conferencestartdate2 February 2016en_AU
dc.identifier.isbn978-0-646-96433-1en_AU
dc.identifier.otherTN3en_AU
dc.identifier.pagination48en_AU
dc.identifier.urihttps://physics.org.au/wp-content/uploads/cmm/2016/Wagga_2016_Conference_Handbook.pdfen_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/12193en_AU
dc.language.isoenen_AU
dc.publisherAustralian Institute of Physicsen_AU
dc.subjectAsiaen_AU
dc.subjectDeveloped countriesen_AU
dc.subjectHydrogen compoundsen_AU
dc.subjectInorganic acidsen_AU
dc.subjectInorganic compoundsen_AU
dc.subjectJapanese organizationsen_AU
dc.subjectMaterialsen_AU
dc.subjectNational organizationsen_AU
dc.subjectOxygen compoundsen_AU
dc.subjectSulfur compoundsen_AU
dc.titleHydrates under pressure - new insights from sulfuric acid hydratesen_AU
dc.typeConference Abstracten_AU
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