Szczegóły publikacji
Opis bibliograficzny
Corrosion and wettability of magnesium orthotitanate $(Mg_{2}TiO_{4})$ refractory aggregate by copper slags with varying iron/silica ratios / I. JASTRZĘBSKA, J. PRZYSTAŚ, O. Pająk, T. Błachuta, P. DROŻDŻ, S. Mandal // Journal of the European Ceramic Society ; ISSN 0955-2219. — Tytuł poprz.: International Journal of High Technology Ceramics. — 2026 — vol. 46 iss. 1 art. no. 117728, s. 1-13. — Bibliogr. s. 12-13, Abstr. — Publikacja dostępna online od: 2025-08-05
Autorzy (6)
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 161970 |
|---|---|
| Data dodania do BaDAP | 2025-09-04 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.jeurceramsoc.2025.117728 |
| Rok publikacji | 2026 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Journal of the European Ceramic Society |
Abstract
Magnesium orthotitanate or qandilite (Mg2TiO4) refractory aggregates are emerging environment-friendly, chromium-free raw materials that can be used to develop bricks replacing traditional, yet carcinogenic hexavalent chromium forming magnesia-chrome (MgO-Cr2O3) refractories used in copper converters. Whereas the synthesis, thermal and physical properties of Mg2TiO4 aggregates have been reported in the literature, its corrosion resistance, especially against copper converter slags with varying iron to silica ratios remains unknown. Three synthetic copper slags with Fe/SiO2 ratios of 1.5–2.2 and containing small amounts of lead and copper oxides along with calcia, magnesia and alumina, mimicking industrial converter slag, were prepared and deeply characterized. Hot stage microscopy up to 1490 °C was used to understand the variation in wettability of the three slags on dense Mg2TiO4 aggregate substrates having only 1 % open porosity. Cross-sectional SEM-EDS was performed after cooling to reveal the corrosion mechanism. The slags with higher Fe/SiO2 ratio had increased melting temperature and reduced wetting angle on Mg2TiO4. Protective layers of high-melting forsterite and magnesioferrite spinel solid solution and overall melting of the slags above 1391 °C indicate the potential for application of Mg2TiO4 in copper converters.
