{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,29]],"date-time":"2026-09-29T04:17:22Z","timestamp":1790655442026,"version":"4.1.0"},"reference-count":20,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2022,1,11]],"date-time":"2022-01-11T00:00:00Z","timestamp":1641859200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Materials"],"abstract":"<jats:p>Iron and other metal compounds are the materials that often appear in coal seams, because they also appear as a component of former organic matter in coal rocks. Although iron is the dominant element in coal rocks, other metals such as titanium, lead, cobalt, nickel, and copper are also present. In this study, the properties of magnetic particles of a size between 1 and 20 \u00b5m of globular structure and iron containing, were separated from coal fly ash, and studied using a scanning electron microscopy, energy disperse spectroscopy, and X-ray diffraction spectroscopy. The investigations were comprised of micrographs of the structure of these particles, their elemental composition, and phase analysis.<\/jats:p>","DOI":"10.3390\/ma15020528","type":"journal-article","created":{"date-parts":[[2022,1,11]],"date-time":"2022-01-11T14:05:07Z","timestamp":1641909907000},"page":"528","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":18,"title":["Morphology and Chemical Composition of Magnetic Particles Separated from Coal Fly Ash"],"prefix":"10.3390","volume":"15","author":[{"given":"Tadeusz","family":"Czech","sequence":"first","affiliation":[{"name":"Institute of Fluid Flow Machinery, Polish Academy of Sciences, Fiszera 14, 80-231 Gda\u0144sk, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2022,1,11]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"486","DOI":"10.1016\/j.fuel.2010.10.006","article-title":"Characterization of spinel and magnetospheres of coal fly ashes collected in power plants in the former USSR","volume":"90","author":"Zyryanov","year":"2011","journal-title":"Fuel"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1016\/j.fuel.2012.03.024","article-title":"A review of the multi-component utilisation of coal fly ash","volume":"97","author":"Blissett","year":"2012","journal-title":"Fuel"},{"key":"ref_3","unstructured":"(2021, December 23). 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