July 28, 2026 Dataset Open Access

Abdolahzade, Mahsa; Renno, Axel D.; Debastiani, Rafaela; Ebert, Doreen; Guy, Bradley; Moeckel, Robert

JSON-LD (schema.org) Export

{
  "name": "Data publication from the Master's thesis \"Mapping Metal Phase Distribution in Historical Muldenh\u00fctten Slag Using X-ray Computed Tomography\" by Mahsa Abdolahzade.", 
  "url": "https://rodare.hzdr.de/record/4769", 
  "description": "<p>Data publication from the Master&#39;s thesis &quot;<strong>Mapping Metal Phase Distribution in Historical Muldenh&uuml;tten Slag Using X-ray Computed Tomography</strong>&quot; by <strong>Mahsa Abdolahzade</strong>.</p>\n\n<p>The data is described in the file &quot;Data publication description relative to the Master thesis Mahsa&nbsp;Abdolahzade&quot;</p>\n\n<p>Abstract:&nbsp;<br>\nHistorical metallurgical slags are heterogeneous multiphase materials in which metal-rich constituents may occur as highly localised internal domains. This thesis developed and evaluated an X-ray computed tomography (XCT) workflow for the non-destructive three-dimensional characterisation of selected historical Muldenh&uuml;tten slags. The methodological focus was the distinction and quantification of three broad attenuation-based classes: internal pores, the dominant slag matrix and high-attenuation features.</p>\n\n<p>Multiscale XCT was applied to samples MS15 and MS18 from slag group SL7 and MS35 from slag group SL3. Fragment scans were used to visualise internal heterogeneity and guide region-of-interest selection, followed by higher-resolution scanning of 11 extracted cylindrical cores. Scan-specific grey-value thresholds, spatial masks and connected-component analysis were used to quantify class volumes and evaluate feature connectivity.&nbsp;Complementary micro-X-ray fluorescence mapping and targeted SEM&ndash;EDS and mineral liberation analysis (MLA) constrained the chemical and mineralogical interpretation of selected XCT-visible regions, while existing X-ray diffraction data provided sample-level context.</p>\n\n<p>The slag matrix dominated all analysed cores, accounting for 86.38&ndash;98.02 vol.%. Internal pore fractions ranged from 0.62 to 7.57 vol.%, while high-attenuation material generally represented 0.59&ndash;2.80 vol.%. MS15-01-C1 was a clear exception, containing 12.90 vol.% high-attenuation material, of which 88.2% occurred in one connected region. Correlative &micro;XRF and MLA results identified this feature as a localised Pb-rich metallic domain containing native Pb, Sb-bearing alloys and subordinate sulphide-bearing phases. The remaining investigated volumes were predominantly silicate dominated and contained smaller, more dispersed high-attenuation features.</p>\n\n<p>The results demonstrate that conventional grey-value segmentation is suitable for quantifying broad structural and attenuation classes where sufficient contrast exists, but not for complete mineral-specific classification of complex slag. Overlapping attenuation responses, scan-dependent grey values, spatial-resolution limits, artefacts and partial-volume effects restricted phase separation. The developed workflow is therefore most effective as a non-destructive localisation and volumetric characterisation method integrated with targeted chemical and mineralogical analyses. It provides a basis for representative sample selection and future metal-deportment, recovery and environmental studies, while the results remain specific to the analysed fragments and core volumes.<br>\n&nbsp;</p>", 
  "@id": "https://doi.org/10.14278/rodare.4769", 
  "version": "1 - 28.07.2026", 
  "keywords": [
    "X-ray computed tomography", 
    "historical metallurgical slag", 
    "method development", 
    "threshold segmentation", 
    "correlative characterisation", 
    "Muldenh\u00fctten"
  ], 
  "@type": "Dataset", 
  "creator": [
    {
      "name": "Abdolahzade, Mahsa", 
      "affiliation": "HZDR-HIF", 
      "@type": "Person"
    }, 
    {
      "name": "Renno, Axel D.", 
      "affiliation": "HZDR-HIF", 
      "@type": "Person", 
      "@id": "https://orcid.org/0000-0002-8289-1059"
    }, 
    {
      "name": "Debastiani, Rafaela", 
      "affiliation": "HZDR-HIF", 
      "@type": "Person", 
      "@id": "https://orcid.org/0000-0003-4396-8612"
    }, 
    {
      "name": "Ebert, Doreen", 
      "affiliation": "HZDR-HIF", 
      "@type": "Person", 
      "@id": "https://orcid.org/0009-0001-0426-9774"
    }, 
    {
      "name": "Guy, Bradley", 
      "affiliation": "HZDR-HIF", 
      "@type": "Person", 
      "@id": "https://orcid.org/0009-0000-3643-6349"
    }, 
    {
      "name": "Moeckel, Robert", 
      "affiliation": "HZDR-HIF", 
      "@type": "Person", 
      "@id": "https://orcid.org/0000-0002-2583-6889"
    }
  ], 
  "datePublished": "2026-07-28", 
  "identifier": "https://doi.org/10.14278/rodare.4769", 
  "license": "https://creativecommons.org/licenses/by/4.0/legalcode", 
  "sameAs": [
    "https://www.hzdr.de/publications/Publ-43694"
  ], 
  "@context": "https://schema.org/", 
  "distribution": [
    {
      "@type": "DataDownload", 
      "fileFormat": "zip", 
      "contentUrl": "https://rodare.hzdr.de/api/files/e65aeaa6-2704-4b37-9352-44ddd3f7f50e/Data microXRF.zip"
    }, 
    {
      "@type": "DataDownload", 
      "fileFormat": "txt", 
      "contentUrl": "https://rodare.hzdr.de/api/files/e65aeaa6-2704-4b37-9352-44ddd3f7f50e/Data publication description relative to the Master thesis Mahsa Abdolahzade.txt"
    }, 
    {
      "@type": "DataDownload", 
      "fileFormat": "zip", 
      "contentUrl": "https://rodare.hzdr.de/api/files/e65aeaa6-2704-4b37-9352-44ddd3f7f50e/MLA data.zip"
    }, 
    {
      "@type": "DataDownload", 
      "fileFormat": "zip", 
      "contentUrl": "https://rodare.hzdr.de/api/files/e65aeaa6-2704-4b37-9352-44ddd3f7f50e/MS15-01-Core-01.zip"
    }, 
    {
      "@type": "DataDownload", 
      "fileFormat": "zip", 
      "contentUrl": "https://rodare.hzdr.de/api/files/e65aeaa6-2704-4b37-9352-44ddd3f7f50e/MS15-01-Core-02.zip"
    }, 
    {
      "@type": "DataDownload", 
      "fileFormat": "zip", 
      "contentUrl": "https://rodare.hzdr.de/api/files/e65aeaa6-2704-4b37-9352-44ddd3f7f50e/MS15-01.zip"
    }, 
    {
      "@type": "DataDownload", 
      "fileFormat": "zip", 
      "contentUrl": "https://rodare.hzdr.de/api/files/e65aeaa6-2704-4b37-9352-44ddd3f7f50e/MS15-02-Core-01.zip"
    }, 
    {
      "@type": "DataDownload", 
      "fileFormat": "zip", 
      "contentUrl": "https://rodare.hzdr.de/api/files/e65aeaa6-2704-4b37-9352-44ddd3f7f50e/MS15-02.zip"
    }, 
    {
      "@type": "DataDownload", 
      "fileFormat": "zip", 
      "contentUrl": "https://rodare.hzdr.de/api/files/e65aeaa6-2704-4b37-9352-44ddd3f7f50e/MS15-03-Core-01.zip"
    }, 
    {
      "@type": "DataDownload", 
      "fileFormat": "zip", 
      "contentUrl": "https://rodare.hzdr.de/api/files/e65aeaa6-2704-4b37-9352-44ddd3f7f50e/MS15-03.zip"
    }, 
    {
      "@type": "DataDownload", 
      "fileFormat": "zip", 
      "contentUrl": "https://rodare.hzdr.de/api/files/e65aeaa6-2704-4b37-9352-44ddd3f7f50e/MS15-04-HR.zip"
    }, 
    {
      "@type": "DataDownload", 
      "fileFormat": "zip", 
      "contentUrl": "https://rodare.hzdr.de/api/files/e65aeaa6-2704-4b37-9352-44ddd3f7f50e/MS18-01.zip"
    }, 
    {
      "@type": "DataDownload", 
      "fileFormat": "zip", 
      "contentUrl": "https://rodare.hzdr.de/api/files/e65aeaa6-2704-4b37-9352-44ddd3f7f50e/MS18-02-Core-01.zip"
    }, 
    {
      "@type": "DataDownload", 
      "fileFormat": "zip", 
      "contentUrl": "https://rodare.hzdr.de/api/files/e65aeaa6-2704-4b37-9352-44ddd3f7f50e/MS18-02.zip"
    }, 
    {
      "@type": "DataDownload", 
      "fileFormat": "zip", 
      "contentUrl": "https://rodare.hzdr.de/api/files/e65aeaa6-2704-4b37-9352-44ddd3f7f50e/MS18-03-Core-01.zip"
    }, 
    {
      "@type": "DataDownload", 
      "fileFormat": "zip", 
      "contentUrl": "https://rodare.hzdr.de/api/files/e65aeaa6-2704-4b37-9352-44ddd3f7f50e/MS18-03-Core-02.zip"
    }, 
    {
      "@type": "DataDownload", 
      "fileFormat": "zip", 
      "contentUrl": "https://rodare.hzdr.de/api/files/e65aeaa6-2704-4b37-9352-44ddd3f7f50e/MS18-03.zip"
    }, 
    {
      "@type": "DataDownload", 
      "fileFormat": "zip", 
      "contentUrl": "https://rodare.hzdr.de/api/files/e65aeaa6-2704-4b37-9352-44ddd3f7f50e/MS18-04-Core-01.zip"
    }, 
    {
      "@type": "DataDownload", 
      "fileFormat": "zip", 
      "contentUrl": "https://rodare.hzdr.de/api/files/e65aeaa6-2704-4b37-9352-44ddd3f7f50e/MS18-04.zip"
    }, 
    {
      "@type": "DataDownload", 
      "fileFormat": "zip", 
      "contentUrl": "https://rodare.hzdr.de/api/files/e65aeaa6-2704-4b37-9352-44ddd3f7f50e/MS35-01-Core-01.zip"
    }, 
    {
      "@type": "DataDownload", 
      "fileFormat": "zip", 
      "contentUrl": "https://rodare.hzdr.de/api/files/e65aeaa6-2704-4b37-9352-44ddd3f7f50e/MS35-01-Core-02.zip"
    }, 
    {
      "@type": "DataDownload", 
      "fileFormat": "zip", 
      "contentUrl": "https://rodare.hzdr.de/api/files/e65aeaa6-2704-4b37-9352-44ddd3f7f50e/MS35-01.zip"
    }, 
    {
      "@type": "DataDownload", 
      "fileFormat": "zip", 
      "contentUrl": "https://rodare.hzdr.de/api/files/e65aeaa6-2704-4b37-9352-44ddd3f7f50e/MS35-02-Core-01.zip"
    }, 
    {
      "@type": "DataDownload", 
      "fileFormat": "zip", 
      "contentUrl": "https://rodare.hzdr.de/api/files/e65aeaa6-2704-4b37-9352-44ddd3f7f50e/MS35-02.zip"
    }, 
    {
      "@type": "DataDownload", 
      "fileFormat": "zip", 
      "contentUrl": "https://rodare.hzdr.de/api/files/e65aeaa6-2704-4b37-9352-44ddd3f7f50e/MS35-03-HR.zip"
    }, 
    {
      "@type": "DataDownload", 
      "fileFormat": "zip", 
      "contentUrl": "https://rodare.hzdr.de/api/files/e65aeaa6-2704-4b37-9352-44ddd3f7f50e/MS35-04.zip"
    }, 
    {
      "@type": "DataDownload", 
      "fileFormat": "zip", 
      "contentUrl": "https://rodare.hzdr.de/api/files/e65aeaa6-2704-4b37-9352-44ddd3f7f50e/Results uXRF.zip"
    }
  ]
}