| Title: | The role of carbon presence on the strontium hexaferrite phase decomposition during pressureless spark plasma sintering (pSPS) |
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| Authors: | ID Učakar, Aleksander, Institut "Jožef Stefan" (Author)
ID Kocjan, Andraž, Institut "Jožef Stefan" (Author)
ID Belec, Blaž (Author)
ID Košir, Janez (Author)
ID Kallio, Tanja (Author)
ID Maček, Marjeta, Institut "Jožef Stefan" (Author)
ID Arah, Bor, Institut "Jožef Stefan" (Author)
ID Jenuš, Petra, Institut "Jožef Stefan" (Author) |
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| Files: |  URL - Source URL, visit https://www.sciencedirect.com/science/article/pii/S2666539525000719?via%3Dihub
 PDF - Presentation file, download (11,24 MB)
MD5: DAD78BAACBA66618D28069FA154CEC6D
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| Language: | English |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: |  IJS - Jožef Stefan Institute
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| Abstract: | 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. |
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| Keywords: | pressureless spark plasma sintering, electronic ceramics, numerical simulations |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Submitted for review: | 28.02.2025 |
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| Article acceptance date: | 27.05.2025 |
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| Publication date: | 05.06.2025 |
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| Publisher: | Elsevier |
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| Year of publishing: | 2025 |
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| Number of pages: | str. 1-21 |
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| Numbering: | Vol. , [article no.] 100804 |
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| Source: | Nizozemska |
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| PID: | 20.500.12556/DiRROS-23473  |
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| UDC: | 620.1/.2 |
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| ISSN on article: | 2666-5395 |
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| DOI: | 10.1016/j.oceram.2025.100804 |
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| COBISS.SI-ID: | 239028995 |
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| Copyright: | © 2025 The Author(s). |
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| Note: | 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;
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| Publication date in DiRROS: | 03.09.2025 |
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| Views: | 328 |
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| Downloads: | 135 |
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