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https://hdl.handle.net/11147/15241
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DC Field | Value | Language |
---|---|---|
dc.contributor.author | Feltrin, Ana C. | - |
dc.contributor.author | De Bona, Emanuele | - |
dc.contributor.author | Karacasulu, Levent | - |
dc.contributor.author | Biesuz, Mattia | - |
dc.contributor.author | Sglavo, Vincenzo M. | - |
dc.contributor.author | Akhtar, Farid | - |
dc.date.accessioned | 2024-12-25T20:59:43Z | - |
dc.date.available | 2024-12-25T20:59:43Z | - |
dc.date.issued | 2025 | - |
dc.identifier.issn | 0955-2219 | - |
dc.identifier.issn | 1873-619X | - |
dc.identifier.uri | https://doi.org/10.1016/j.jeurceramsoc.2024.117132 | - |
dc.description | De Bona, Emanuele/0000-0001-5133-5108 | en_US |
dc.description.abstract | Entropy-stabilized Ultra High-Temperature Ceramics (UHTC) offer a groundbreaking solution to the challenges of extreme environments, showcasing enhanced mechanical properties, thermal stability, and resistance to oxidation at high temperatures. The consolidation of UHTC by ultra-fast high-temperature sintering (UHS) significantly reduces processing times and temperature and can produce dense high-performance ceramics with superior mechanical properties. This study reports the pressureless synthesis and consolidation of the entropy-stabilized (Hf0.25Zr0.25Ti0.25V0.25)B-2-B4C composite through UHS within 1 minute, starting from transition metal diboride powders. B4C acts as an effective sintering aid, promoting the densification of the system and the formation of a nearly single-phase hexagonal diboride with a diboride-eutectic phase. Furthermore, a secondary minor hexagonal phase rich in V and Zr is formed close to the eutectic regions. Sintering currents of 40 A were necessary to reach densities higher than 90 % under pressureless conditions, achieving nano hardness higher than 27.3 GPa, comparable with high-entropy diborides produced by Spark Plasma Sintering. The study highlights the entropy-stabilized phase formation, diffusion, densification, and grain growth mechanisms involved during UHS. The work contributes to the understanding of entropy-stabilized ceramics produced by UHS as a faster and less energy-consuming process than conventional sintering methods. | en_US |
dc.description.sponsorship | Swedish Foundation for Strategic Research (SSF) for Infrastructure Fellowship [RIF14-0083] | en_US |
dc.description.sponsorship | This work was supported by the Swedish Foundation for Strategic Research (SSF) for Infrastructure Fellowship, Grant No. RIF14-0083. The authors acknowledge Erik Nilsson for the help with the EBSD and the LUMIA (Lulea Material Imaging and Analysis) center for providing the imaging characterization equipment. | en_US |
dc.language.iso | en | en_US |
dc.publisher | Elsevier Sci Ltd | en_US |
dc.rights | info:eu-repo/semantics/openAccess | en_US |
dc.subject | Entropy-Stabilization | en_US |
dc.subject | Ultra-High-Temperature Ceramics | en_US |
dc.subject | Ultra-Fast High-Temperature Sintering | en_US |
dc.title | Pressureless Synthesis and Consolidation of the Entropy-Stabilized (hf<sub>0.25</Sub>zr<sub>0.25< Composite by Ultra-Fast High-Temperature Sintering (uhs) | en_US |
dc.type | Article | en_US |
dc.authorid | De Bona, Emanuele/0000-0001-5133-5108 | - |
dc.department | İzmir Institute of Technology | en_US |
dc.identifier.volume | 45 | en_US |
dc.identifier.issue | 5 | en_US |
dc.identifier.wos | WOS:001388720100001 | - |
dc.identifier.scopus | 2-s2.0-85211967959 | - |
dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | en_US |
dc.identifier.doi | 10.1016/j.jeurceramsoc.2024.117132 | - |
dc.authorwosid | Akhtar, Farid/E-3061-2014 | - |
dc.authorwosid | De Bona, Emanuele/KCL-4731-2024 | - |
dc.authorwosid | Biesuz, Mattia/ABG-9979-2020 | - |
dc.identifier.wosquality | Q1 | - |
dc.identifier.scopusquality | Q1 | - |
dc.description.woscitationindex | Science Citation Index Expanded | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.languageiso639-1 | en | - |
item.openairetype | Article | - |
item.grantfulltext | none | - |
item.fulltext | No Fulltext | - |
item.cerifentitytype | Publications | - |
crisitem.author.dept | 01.01. Units Affiliated to the Rectorate | - |
Appears in Collections: | Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection |
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