A thermosyphon-driven hydrothermal flow-through cell for in situ and time-resolved neutron diffraction studies

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dc.contributor.authorXia, Fen_AU
dc.contributor.authorO'Neill, Ben_AU
dc.contributor.authorNgothai, Yen_AU
dc.contributor.authorPeak, Jen_AU
dc.contributor.authorTenailleau, Cen_AU
dc.contributor.authorEtschmann, BEen_AU
dc.contributor.authorQian, Gen_AU
dc.contributor.authorBrugger, Jen_AU
dc.contributor.authorStuder, AJen_AU
dc.contributor.authorOlsen, SRen_AU
dc.contributor.authorPring, Aen_AU
dc.date.accessioned2010-05-11T02:20:46Zen_AU
dc.date.available2010-05-11T02:20:46Zen_AU
dc.date.issued2010-06-01en_AU
dc.date.statistics2010-06-01en_AU
dc.description.abstractA flow-through cell for hydrothermal phase transformation studies by in situ and time-resolved neutron diffraction has been designed and constructed. The cell has a large internal volume of 320 ml and can operate at temperatures up to 573 K under autogenous vapor pressures (ca 8.5 × 106 Pa). The fluid flow is driven by a thermosyphon, which is achieved by the proper design of temperature difference around the closed loop. The main body of the cell is made of stainless steel (316 type), but the sample compartment is constructed from non-scattering Ti-Zr alloy. The cell has been successfully commissioned on Australia's new high-intensity powder diffractometer WOMBAT at the Australian Nuclear Science and Technology Organization, using two simple phase transformation reactions from KAlSi2O6 (leucite) to NaAlSi2O6·H2O (analcime) and then back from NaAlSi2O6·H2O to KAlSi2O6 as examples. The demonstration proved that the cell is an excellent tool for probing hydrothermal crystallization. By collecting diffraction data every 5 min, it was clearly seen that KAlSi2O6 was progressively transformed to NaAlSi2O6·H2O in a sodium chloride solution, and the produced NaAlSi2O6·H2O was progressively transformed back to KAlSi2O6 in a potassium carbonate solution. © 2010, Wiley-Blackwell.en_AU
dc.identifier.citationXia, F., O'Neill, B., Ngothai, Y., Peak, J., Tenailleau, C., Etschmann, B., Quian, G., Brugger, J., Studer, A., Olsen, S. & Pring. A.(2009). A thermosyphon-driven hydrothermal flow-through cell for in situ and time-resolved neutron diffraction studies. Journal of Applied Crystallography, 43, 511-519. doi:10.1107/S0021889810006990en_AU
dc.identifier.govdoc1684en_AU
dc.identifier.issn0021-8898en_AU
dc.identifier.journaltitleJournal of Applied Crystallographyen_AU
dc.identifier.pagination511-519en_AU
dc.identifier.urihttp://dx.doi.org/10.1107/S0021889810006990en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/1664en_AU
dc.identifier.volume43en_AU
dc.language.isoenen_AU
dc.publisherWiley-Blackwellen_AU
dc.subjectPhase transformationsen_AU
dc.subjectThermosyphonsen_AU
dc.subjectNeutron diffractionen_AU
dc.subjectANSTOen_AU
dc.subjectPotassium carbonatesen_AU
dc.subjectIn-situ processingen_AU
dc.titleA thermosyphon-driven hydrothermal flow-through cell for in situ and time-resolved neutron diffraction studiesen_AU
dc.typeJournal Articleen_AU
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