| Autor: |
Manchón Gordón, Alejandro F., Sánchez Jiménez, Pedro Enrique, Blázquez Gámez, Javier Sebastián, Perejón Pazo, Antonio, Pérez Maqueda, Luis Allan |
| Přispěvatelé: |
Universidad de Sevilla. Departamento de Química Inorgánica, Universidad de Sevilla. Departamento de Física de la Materia Condensada, Ministerio de Ciencia e Innovación (MICIN). España, Junta de Andalucía, Consejo Superior de Investigaciones Científicas (CSIC) |
| Jazyk: |
angličtina |
| Rok vydání: |
2022 |
| Předmět: |
|
| ISSN: |
2017-8360 |
| Popis: |
Reactive flash-sintering technique has been used in order to obtain strontium ferrite magnets from a mixture of SrCO3 and Fe2O3 commercial powders. This technique allows preparing sintered SrFe12O19 at a furnace temperature of just 973 K during just 2 min by applying a modest field of 40 V cm-1, instead of the conventional sintering process employed in ferrite magnet manufacturing that demands high temperature and long dwell times. Analysis of structural and magnetic properties were performed as a function of time in which the flash event was held. Mössbauer spectra show the existence of five different kinds of local environments, confirming the formation of strontium hexaferrite. The resulting samples exhibit comparable magnetic properties to the state-of-the-art ferrite magnets. In particular, produced samples reach a coercivity of 0.4 T and a specific saturation magnetization of 70 Am2 kg-1. Ministerio de Ciencia e Innovación CTQ2017-83602- C2–1-R Junta de Andalucía P18-FR-1087, US- 1262507 Consejo Superior de Investigaciones Científicas (CSIC) 201960E092, 202060I004 |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
|
