Synthesis and characterization of nanoparticles metallic in a ceramic matrix
| Full text | |
| Author(s): |
W. S. Castro
;
R. R. Corrêa
;
A. J. A. de Oliveira
;
R. H. G. A. Kiminami
Total Authors: 4
|
| Document type: | Journal article |
| Source: | Cerâmica; v. 60, n. 354, p. 254-258, Jun. 2014. |
| Abstract | |
Chromium-doped strontium hexaferrite powder was prepared by combustion reaction. The influence of the Cr3+ concentration on the SrCr xFe12-xO19 system was investigated. The powder was prepared according to the concept of propellant chemistry and heated on a conventional plate. The resulting material was characterized by X-ray diffraction, scanning electron microscopy and magnetic measurements. The results indicate that chromium-doped hexaferrite nanopowders were obtained successfully. The presence of the secondary phase (SrFe2O5) tended to decrease with increasing chromium content and the ratio of x = 0.4 of chromium enhanced the material's saturation magnetization. (AU) | |
| FAPESP's process: | 12/24025-0 - Magnetic, electrical and magnetostrictive properties of multiferroic composites and dilute magnetic semiconductors oxides |
| Grantee: | Adilson Jesus Aparecido de Oliveira |
| Support type: | Regular Research Grants |
| FAPESP's process: | 08/04025-0 - Nanostructured multifunctional multiferroic materials: synthesis, properties, phenomenology and applications |
| Grantee: | José Antonio Eiras |
| Support type: | Research Projects - Thematic Grants |