Szczegóły publikacji
Opis bibliograficzny
Activation energies of oxidation in air for SPS-sintered zirconium and its alloys / Radosław WNUK, Pavel Novak, Michał STĘPIEŃ, Lucyna JAWORSKA, Ivo Marek, Piotr NOGA, Tomasz SKRZEKUT, Stanisław MAŁECKI // Archives of Civil and Mechanical Engineering / Polish Academy of Sciences. Wrocław Branch, Wrocław University of Technology ; ISSN 1644-9665. — 2025 — vol. 25 iss. 2 art. no. 71, s. 1–14. — Bibliogr. s. 13–14, Abstr. — Publikacja dostępna online od: 2025-01-28
Autorzy (8)
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 158044 |
|---|---|
| Data dodania do BaDAP | 2025-03-12 |
| Tekst źródłowy | URL |
| DOI | 10.1007/s43452-025-01126-5 |
| Rok publikacji | 2025 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Archives of Civil and Mechanical Engineering |
Abstract
The research concerns the oxidation process of SPS-sintered zirconium-based materials. The sintered materials are characterized by residual porosity, which can affect the intensification of the oxidation process, compared to melted materials. On the basis of TGA tests carried out at temperatures of 500, 600, 700, and 800 degrees C, activation energies in air of sintered Zr, Zr-2.5Cu, Zr-2.5Nb, and Zr-2.5Mn, respectively, were calculated. Based on the studies of the microstructure and phase composition of oxidized materials, degradation mechanisms were analyzed for materials after annealing at 700 degrees C. In sintered Zr, Zr-2.5Cu, and Zr-2.5Nb oxidized at 700 degrees C, Si3N4 was detected. Si3N4 is formed at the zirconium oxide-zirconium boundary, in oxygen-deficient conditions. Zr-2.5Cu demonstrated the lowest tendency to oxidize despite the low values of activation energy for the oxidation process in air of 61 kJ/mol. This material showed the highest resistance to oxidation in air.
