micro-XRCT data sets of subflorescent salt crusts from evaporation of MgSO4 solution with 0.64 mol/L initial concentrationdoi:10.18419/darus-1848DaRUS2021-09-061Ruf, Matthias; Lee, Dongwon; Piotrowski, Joseph; Huisman, Johan Alexander; Steeb, Holger, 2021, "micro-XRCT data sets of subflorescent salt crusts from evaporation of MgSO4 solution with 0.64 mol/L initial concentration", https://doi.org/10.18419/darus-1848, DaRUS, V1micro-XRCT data sets of subflorescent salt crusts from evaporation of MgSO4 solution with 0.64 mol/L initial concentrationReconstructed and segmented data of crusts at 40%, 30%, and 20% saturation in F32 quartz sanddoi:10.18419/darus-1848Ruf, MatthiasLee, DongwonPiotrowski, JosephHuisman, Johan AlexanderSteeb, HolgerSteeb, HolgerUniversity of Stuttgart, Institute of Applied Mechanics (CE) - Chair for Continuum-MechanicsUniversity of Stuttgart - Cluster of Excellence EXC 2075 "SimTech"2020University of Stuttgart, Institute of Applied Mechanics (CE), Stuttgart, 70569, Germany327154368DaRUSSteeb, HolgerChemistryComputer and Information ScienceEarth and Environmental SciencesEngineeringMicro-X-Ray Computed Tomography (micro-XRCT)Porous MediaMagnesium SulfateSalt Precipitation From EvaporationSubflorescent Salt Crust FormationThis data set contains data of scans of three separated dry salt crusts that formed by evaporation of magnesium sulfate solution with 0.64 mol/L initial concentration from F32 quartz sand at 40%, 30%, and 20% saturation inside the sand packing. 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 metadata. The reconstructed data is segmented into four phases, outside, void, salt, and sand (for details see below).Image dataRuf, M., Lee, D., and Piotrowski, J. contributed equally.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. <a href="https://doi.org/10.18419/darus-1861">https://doi.org/10.18419/darus-1861</a><br>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. <a href="https://doi.org/10.18419/darus-2003">https://doi.org/10.18419/darus-2003</a><br>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 0.32 mol/L initial concentration. DaRUS. <a href="https://doi.org/10.18419/darus-2002">https://doi.org/10.18419/darus-2002</a>Ruf, M., & Steeb, H. (2020). An open, modular, and flexible micro X-ray computed tomography system for research. <em>Review of Scientific Instruments</em>, 91(11), 113102. <a href="https://doi.org/10.1063/5.0019541">https://doi.org/10.1063/5.0019541</a>reconstructed_064_mol-L_020_sat.tar.gzReconstructed micro-XRCT data set of the crust segment from 0.64 mol/L initial concentration at 20% saturation in 16 bit *.tif file format. 2940x2940x711 voxels with a uniform voxel size of 4.0 µm. (internal ID: 20200929_01_J01)application/x-gzipsegmented_064_mol-L_020_sat.tar.gzSegmented micro-XRCT data set of the crust segment from 0.64 mol/L initial concentration at 20% saturation in 8 bit *.tif file format. 2940x2940x711 voxels with a uniform voxel size of 4.0 µm. application/x-gzipreconstructed_064_mol-L_030_sat.tar.gzReconstructed micro-XRCT data set of the crust segment from 0.64 mol/L initial concentration at 30% saturation in 16 bit *.tif file format. 2940x2940x851 voxels with a uniform voxel size of 4.0 µm. (internal ID: 20200305_01_J09)application/x-gzipsegmented_064_mol-L_030_sat.tar.gzSegmented micro-XRCT data set of the crust segment from 0.64 mol/L initial concentration at 30% saturation in 8 bit *.tif file format. 2940x2940x851 voxels with a uniform voxel size of 4.0 µm. application/x-gzipreconstructed_064_mol-L_040_sat.tar.gzReconstructed micro-XRCT data set of the crust segment from 0.64 mol/L initial concentration at 40% saturation in 16 bit *.tif file format. 2940x2940x701 voxels with a uniform voxel size of 4.0 µm. (internal ID: 20200303_02_J03)application/x-gzipsegmented_064_mol-L_040_sat.tar.gzSegmented micro-XRCT data set of the crust segment from 0.64 mol/L initial concentration at 40% saturation in 8 bit *.tif file format. 2940x2940x701 voxels with a uniform voxel size of 4.0 µm. application/x-gzipmask_file.tifThe mask file was used during "post processing - segmentation step 1".image/tiff