Structure and hyperfine interactions of Bi9Ti3Fe5O27 multiferroic ceramic prepared by sintering and mechanical alloying methods
Artykuł w czasopiśmie
| Status: | |
| Autorzy: | Mazurek Mariusz, Jartych Elżbieta, Lisińska-Czekaj Agata, Czekaj Dionizy, Oleszak Dariusz |
| Rok wydania: | 2010 |
| Wersja dokumentu: | Drukowana | Elektroniczna |
| Język: | angielski |
| Numer czasopisma: | 37-40 |
| Wolumen/Tom: | 356 |
| Strony: | 1994 - 1997 |
| Impact Factor: | 1,492 |
| Web of Science® Times Cited: | 16 |
| Scopus® Cytowania: | 20 |
| Bazy: | Web of Science | Scopus |
| Efekt badań statutowych | NIE |
| Materiał konferencyjny: | NIE |
| Publikacja OA: | NIE |
| Abstrakty: | angielski |
| X-ray diffraction and Mössbauer spectroscopy were applied as complementary methods to investigate the structure and hyperfine interactions in the Bi9Ti3Fe5O27 compound. Samples were synthesized by the solid-state sintering method at various temperatures as well as by mechanical alloying. An X-ray diffraction analysis proved that the sintered compounds formed single phases at a temperature above 993 K, while the mechanosynthesized material needed additional thermal treatment to complete the single phase formation. Mössbauer studies confirmed the diffraction measurements. Compounds, both those prepared by a solid-state route and fired at 993 K and those mechanically alloyed contained residual hematite, however, those sintered at elevated temperatures and mechanically alloyed and subsequently annealed at 1173 K were single-phased materials. Room-temperature Mössbauer spectra of the Bi9Ti3Fe5O27 compound revealed their paramagnetic properties suggesting that the Néel temperature of this ceramic was lower than room temperature. |
