RT Journal Article
T1 Capacitor Electrical Discharge Sintering of Amorphous Fe-Si-B Powder
A1 Urban, Petr
A1 Cintas Físico, Jesús
A1 Montes Martos, Juan Manuel
A1 Gómez Cuevas, Francisco de Paula
AB High purity powders of Fe, Si and B mixed with atomic composition Fe78Si9B13 are subjected, after arc melting, to a melt spinning process. The amorphous ribbons are transformed into powder by mechanical milling, reaching mean sizes of 65 and 262 µm, taking care of maintaining the amorphous character. The powders are sintered by means of a very quick capacitor electrical discharge (CEDS), while trying to maintain the initial structure of the powders. The CEDS process is analyzed depending on the thermal energy applied during the discharge, as well as on the particle size of the powders and the powders’ mass. The porosity, microstructure, hardness, electrical resistivity and magnetic properties of the prepared compacts are analyzed. Thus, for powders with a mean size of 262 μm, the porosity can be reduced from 0.33 to 0.11 after sintering, reaching a microhardness of up to 1100 HV1 after applying a discharge of 2640 J/s. A coercivity of 1895 A/m and a saturation flux density of 1.32 T are achieved in the compact, which maintains a microstructure with up to 64% of amorphous phase.
PB MDPI
SN 2075-4701 (electrónico)
YR 2026
FD 2026
LK https://hdl.handle.net/10272/28049
UL https://hdl.handle.net/10272/28049
LA eng
NO Aranda, R. M., Urban, P., Cintas, J., Montes, J. M., & Gómez-Cuevas, F. (2026). Capacitor Electrical Discharge Sintering of Amorphous Fe-Si-B Powder. Metals, 16(2), 239. https://doi.org/10.3390/met16020239
NO This research is part of the R&D&I project PID2021-123750-OB-I00, funded by MICIU/AEI/10.13039/501100011033/and by “ERDF A way of making Europe”. Funding for experimental analyses: EPIT2024 University of Huelva, Spain.
DS Repositorio Institucional de la Universidad de Huelva
RD 1 jun 2026