20.500.12556/DiRROS-23473 The role of carbon presence on the strontium hexaferrite phase decomposition during pressureless spark plasma sintering (pSPS) The phase composition and microstructure of Sr-hexaferrite (SFO) ceramics govern the hard magnetic properties. Here, pressureless spark plasma sintering (pSPS) technique was employed for the rapid consolidation (500°C/min) of SFO in a radiating graphite crucible under vacuum and, thus, reductive conditions. A numerical model depicting the temperature profile within the heating crucible was constructed to understand the temperature evolution within the samples. The combination pSPS sintering environment (graphite heating crucible under vacuum) promoted phase decomposition to Sr-enriched and depleted phases of various morphological variations, leading to reduction of hard magnetic properties. Notably, certain newly formed phases exhibited lower melting points, inducing a shift in the sintering mechanism from solid-state sintering to a partial liquid-phase sintering mechanism. pressureless spark plasma sintering electronic ceramics numerical simulations elektronska keramika numerične simulacije true false true Elsevier Nizozemska Angleški jezik Slovenski jezik © 2025 The Author(s). Neznano 2025-09-03 11:58:15 2025-09-03 11:58:15 2025-10-24 03:54:25 0000-00-00 00:00:00 2025 0 0 Nasl. z nasl. zaslona; Soavtorji: Andraž Kocjan, Blaž Belec, Janez Košir, Marjetna Kržmanc Maček, Bor Arah, Petra Jenuš Belec; Opis vira z dne 11. 6. 2025; str. 1-21 Vol. , [article no.] 100804 [in press] 2025 0000-00-00 Zaloznikova Objavljeno NiDoloceno 2025-02-28 2025-05-27 2025-06-05 620.1/.2 2666-5395 10.1016/j.oceram.2025.100804 239028995 https://www.sciencedirect.com/science/article/pii/S2666539525000719?via%3Dihub 1 834c9ffe-88ac-11f0-9bb7-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=34717 RAZ_Ucakar_Aleksander_2025.pdf RAZ_Ucakar_Aleksander_2025.pdf 1 DAD78BAACBA66618D28069FA154CEC6D 2f39d0ed491a746978003aecc06f57af9bbbdb5bf86f5fe65f7df493bd18633e 5472121a-88ad-11f0-9bb7-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=34718 Institut Jožef Stefan 0 0 0