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The cylindrical sample holder from polymethyl methacrylat (PMMA) had a diameter of 31 mm and a wall thickness of 5 mm. The crusts consisted of sand grains (F32, Quarzwerke Frechen, mean grain size 240 µm), solid salt (particularly magnesium sulfate tetra hydrate), and air. Other magnesium sulfate hydrates may have precipitated (i.e. magnesium sulfate hepta hydrate, hexa hydrate, mono hydrate). The scanned domain with a diameter of 11.76 mm and a resolution of 4 µm per voxel was located in the radial center of the crust. Details of the scan are listed in the process meta data. The reconstructed data is segmented into four phases, outside, void, salt, and sand (for details see below)."}}]},{"typeName":"subject","multiple":true,"typeClass":"controlledVocabulary","value":["Chemistry","Computer and Information Science","Earth and Environmental Sciences","Engineering"]},{"typeName":"keyword","multiple":true,"typeClass":"compound","value":[{"keywordValue":{"typeName":"keywordValue","multiple":false,"typeClass":"primitive","value":"Micro-X-Ray Computed Tomography (micro-XRCT)"},"keywordVocabulary":{"typeName":"keywordVocabulary","multiple":false,"typeClass":"primitive","value":"Wikidata"},"keywordVocabularyURI":{"typeName":"keywordVocabularyURI","multiple":false,"typeClass":"primitive","value":"https://www.wikidata.org/wiki/Q3042540"}},{"keywordValue":{"typeName":"keywordValue","multiple":false,"typeClass":"primitive","value":"Porous Media"},"keywordVocabulary":{"typeName":"keywordVocabulary","multiple":false,"typeClass":"primitive","value":"Wikidata"},"keywordVocabularyURI":{"typeName":"keywordVocabularyURI","multiple":false,"typeClass":"primitive","value":"https://www.wikidata.org/wiki/Q3271208"}},{"keywordValue":{"typeName":"keywordValue","multiple":false,"typeClass":"primitive","value":"Magnesium Sulfate"},"keywordVocabulary":{"typeName":"keywordVocabulary","multiple":false,"typeClass":"primitive","value":"Wikidata"},"keywordVocabularyURI":{"typeName":"keywordVocabularyURI","multiple":false,"typeClass":"primitive","value":"https://www.wikidata.org/wiki/Q18212318"}},{"keywordValue":{"typeName":"keywordValue","multiple":false,"typeClass":"primitive","value":"Salt Precipitation From Evaporation"}},{"keywordValue":{"typeName":"keywordValue","multiple":false,"typeClass":"primitive","value":"Subflorescent Salt Crust Formation"}}]},{"typeName":"notesText","multiple":false,"typeClass":"primitive","value":"Ruf, M., Lee, D., and Piotrowski, J. contributed equally."},{"typeName":"language","multiple":true,"typeClass":"controlledVocabulary","value":["English"]},{"typeName":"producer","multiple":true,"typeClass":"compound","value":[{"producerName":{"typeName":"producerName","multiple":false,"typeClass":"primitive","value":"University of Stuttgart, Institute of Applied Mechanics (CE) - Chair for Continuum-Mechanics"},"producerURL":{"typeName":"producerURL","multiple":false,"typeClass":"primitive","value":"https://www.mib.uni-stuttgart.de/en"}},{"producerName":{"typeName":"producerName","multiple":false,"typeClass":"primitive","value":"University of Stuttgart - Cluster of Excellence EXC 2075 \"SimTech\""},"producerURL":{"typeName":"producerURL","multiple":false,"typeClass":"primitive","value":"https://www.simtech.uni-stuttgart.de"}}]},{"typeName":"productionDate","multiple":false,"typeClass":"primitive","value":"2020"},{"typeName":"productionPlace","multiple":true,"typeClass":"primitive","value":["University of Stuttgart, Institute of Applied Mechanics (CE), Stuttgart, 70569, Germany"]},{"typeName":"contributor","multiple":true,"typeClass":"compound","value":[{"contributorType":{"typeName":"contributorType","multiple":false,"typeClass":"controlledVocabulary","value":"Rights Holder"},"contributorName":{"typeName":"contributorName","multiple":false,"typeClass":"primitive","value":"Steeb, Holger"}}]},{"typeName":"grantNumber","multiple":true,"typeClass":"compound","value":[{"grantNumberAgency":{"typeName":"grantNumberAgency","multiple":false,"typeClass":"primitive","value":"DFG"},"grantNumberValue":{"typeName":"grantNumberValue","multiple":false,"typeClass":"primitive","value":"327154368"}}]},{"typeName":"project","multiple":true,"typeClass":"compound","value":[{"projectName":{"typeName":"projectName","multiple":false,"typeClass":"primitive","value":"SFB 1313 - C05"}}]},{"typeName":"kindOfData","multiple":true,"typeClass":"primitive","value":["Image data"]},{"typeName":"relatedDatasets","multiple":true,"typeClass":"primitive","value":["Piotrowski, J., Huisman, J. A., (2021). Sample Properties, Evaporation Data, and Pressure Measurements of MgSO4 Crusts on F32 Quartz Sand From 0.96 mol/L, 0.64 mol/L, and 0.32 mol/L Initial Concentration. DaRUS. https://doi.org/10.18419/darus-1861","
Ruf, M., Lee, D., Piotrowski, J., Huisman, J.A., Steeb, H., (2021). micro-XRCT data sets of subflorescent salt crusts from evaporation of MgSO4 solution with 0.96 mol/L initial concentration. DaRUS. https://doi.org/10.18419/darus-2003","
Ruf, M., Lee, D., Piotrowski, J., Huisman, J.A., Steeb, H., (2021). micro-XRCT data sets of subflorescent salt crusts from evaporation of MgSO4 solution with 0.64 mol/L initial concentration. DaRUS. https://doi.org/10.18419/darus-1848"]},{"typeName":"otherReferences","multiple":true,"typeClass":"primitive","value":["Ruf, M., & Steeb, H., (2020). An open, modular, and flexible micro X-ray computed tomography system for research. 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