RT Journal Article
T1 Medium-Frequency Electrical Resistance Sintering of Oxidized C.P. Iron Powder
A1 Montes Martos, Juan Manuel
A1 Gómez Cuevas, Francisco de Paula
A1 Ternero Fernández, Fátima
A1 Astacio, Raquel
A1 Sánchez Caballero, Eduardo
A1 Cintas Físico, Jesús
AB Commercially pure (C.P.) iron powders with a deliberate high degree of oxidation wereconsolidated by medium-frequency electrical resistance sintering (MF-ERS). This is a consolidationtechnique where pressure, and heat coming from a low-voltage and high-intensity electrical current,are simultaneously applied to a powder mass. In this work, the achieved densification rate isinterpreted according to a qualitative microscopic model, based on the compacts global porosityand electrical resistance evolution. The effect of current intensity and sintering time on compactswas studied on the basis of micrographs revealing the porosity distribution inside the sinteredcompact. The microstructural characteristics of compacts consolidated by the traditional cold-pressand furnace-sinter powder metallurgy route are compared with results of MF-ERS consolidation.The goodness of MF-ERS versus the problems of conventional sintering when working with oxidizedpowders is analyzed. The electrical consolidation can obtain higher densifications than the traditionalroute under non-reducing atmospheres.
PB MDPI
SN 2075-4701
YR 2018
FD 2018-06
LK http://hdl.handle.net/10272/16213
UL http://hdl.handle.net/10272/16213
LA eng
NO Montes, J., Cuevas, F., Ternero, F., Astacio, R., Caballero, E., Cintas, J.  Medium-Frequency Electrical Resistance Sintering of Oxidized C.P. Iron Powder. Metals, 8(6), 426. (2018). DOI: https://doi.org/10.3390/met8060426
NO Medium-Frequency Electrical Resistance Sintering ofOxidized C.P. Iron Powder
DS Repositorio Institucional de la Universidad de Huelva
RD 1 jun 2026