Szczegóły publikacji
Opis bibliograficzny
Fabrication of dense $Cr_{3}AlB_{4}$ polycrystals via pressure-assisted reactive sintering / Jan SŁOMIŃSKI, Sebastian KOMAREK, Kamil KORNAUS, Norbert MOSKAŁA, Agnieszka RÓŻYCKA, Dariusz ZIENTARA, Agnieszka GUBERNAT // Journal of the European Ceramic Society ; ISSN 0955-2219. — Tytuł poprz.: International Journal of High Technology Ceramics. — 2025 — vol. 45 iss. 14 art. no. 117532, s. 1-11. — Bibliogr. s. 10-11, Abstr. — Publikacja dostępna online od: 2025-05-13
Autorzy (7)
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 160069 |
|---|---|
| Data dodania do BaDAP | 2025-06-30 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.jeurceramsoc.2025.117532 |
| Rok publikacji | 2025 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Journal of the European Ceramic Society |
Abstract
This research investigates the synthesis of Cr₃AlB₄, a member of the MAB phase family, using the hot pressing (HP) method. Cr₃AlB₄ exhibits a combination of ceramic-like hardness and metal-like damage tolerance, making it valuable for applications in extreme environments. However, its synthesis is challenging due to phase transitions involving precursors. The study evaluates the influence of reaction sintering and annealing time on phase formation, grain growth, and material stability. The results show that HP yields materials with over 80 % Cr₃AlB₄ phase content, but prolonged annealing leads to its decomposition into Cr₃B₄, which causes microstructural changes and grain cracking. Cracking is attributed to the differences in thermal expansion coefficients between Cr₃AlB₄ and other phases, leading to stress accumulation during cooling. To optimize the synthesis process, the study recommends controlling grain size and using non-reactive sintering additives to limit grain growth.
