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Title: Low-Temperature Short-Time SPS Processes to Produce Fine-Grained High-Coercivity Barium Hexaferrite Ceramics from Polyol Nanoparticles

Abstract

Barium hexaferrite (BaFe{sub 12}O{sub 19}) ceramics were obtained by combination of polyol-synthesized precursors subsequently consolidated by spark plasma sintering (SPS) at a low temperature (800 {sup ∘}C). X-ray powder diffraction studies showed the influence of the experimental parameters to produce a virtually single- or multiphase material. The room temperature magnetic properties exhibited interesting variety of properties, including exchange coupling (spring magnet) between hexaferrite and other magnetic phases. The saturation magnetization and coercive field, at room temperature, are in the 34–70 emu/g and 4.1–5.0 kOe ranges, respectively. The combination of strong coercive field and magnetization resulted in a maximum energy product [(BH)max] = 10.9 kJ/m{sup 3} for the sample with the highest BaFe{sub 12}O{sub 19} content.

Authors:
 [1]; ; ; ;  [2];  [1]
  1. Universidad Nacional Autónoma de México, Instituto de Investigaciones en Materiales (Mexico)
  2. Université de Paris-Diderot, Laboratoire ITODYS, Sorbonne Paris Cité, CNRS-UMR (France)
Publication Date:
OSTI Identifier:
22774121
Resource Type:
Journal Article
Journal Name:
Journal of Superconductivity and Novel Magnetism
Additional Journal Information:
Journal Volume: 31; Journal Issue: 2; Other Information: Copyright (c) 2018 Springer Science+Business Media, LLC, part of Springer Nature; Article Copyright (c) 2017 Springer Science+Business Media, LLC; http://www.springer-ny.com; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1557-1939
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; BARIUM COMPOUNDS; CERAMICS; COERCIVE FORCE; COUPLING; FERRITES; MAGNETIC PROPERTIES; MAGNETIZATION; NANOPARTICLES; NANOSTRUCTURES; PERMANENT MAGNETS; SINTERING; TEMPERATURE RANGE 0065-0273 K; TEMPERATURE RANGE 0273-0400 K; X-RAY DIFFRACTION

Citation Formats

Vázquez-Victorio, G., E-mail: gvazquezvic@gmail.com, Flores-Martínez, N., Franceschin, G., Nowak, S., Ammar, S., and Valenzuela, R.. Low-Temperature Short-Time SPS Processes to Produce Fine-Grained High-Coercivity Barium Hexaferrite Ceramics from Polyol Nanoparticles. United States: N. p., 2018. Web. doi:10.1007/S10948-017-4219-X.
Vázquez-Victorio, G., E-mail: gvazquezvic@gmail.com, Flores-Martínez, N., Franceschin, G., Nowak, S., Ammar, S., & Valenzuela, R.. Low-Temperature Short-Time SPS Processes to Produce Fine-Grained High-Coercivity Barium Hexaferrite Ceramics from Polyol Nanoparticles. United States. doi:10.1007/S10948-017-4219-X.
Vázquez-Victorio, G., E-mail: gvazquezvic@gmail.com, Flores-Martínez, N., Franceschin, G., Nowak, S., Ammar, S., and Valenzuela, R.. Thu . "Low-Temperature Short-Time SPS Processes to Produce Fine-Grained High-Coercivity Barium Hexaferrite Ceramics from Polyol Nanoparticles". United States. doi:10.1007/S10948-017-4219-X.
@article{osti_22774121,
title = {Low-Temperature Short-Time SPS Processes to Produce Fine-Grained High-Coercivity Barium Hexaferrite Ceramics from Polyol Nanoparticles},
author = {Vázquez-Victorio, G., E-mail: gvazquezvic@gmail.com and Flores-Martínez, N. and Franceschin, G. and Nowak, S. and Ammar, S. and Valenzuela, R.},
abstractNote = {Barium hexaferrite (BaFe{sub 12}O{sub 19}) ceramics were obtained by combination of polyol-synthesized precursors subsequently consolidated by spark plasma sintering (SPS) at a low temperature (800 {sup ∘}C). X-ray powder diffraction studies showed the influence of the experimental parameters to produce a virtually single- or multiphase material. The room temperature magnetic properties exhibited interesting variety of properties, including exchange coupling (spring magnet) between hexaferrite and other magnetic phases. The saturation magnetization and coercive field, at room temperature, are in the 34–70 emu/g and 4.1–5.0 kOe ranges, respectively. The combination of strong coercive field and magnetization resulted in a maximum energy product [(BH)max] = 10.9 kJ/m{sup 3} for the sample with the highest BaFe{sub 12}O{sub 19} content.},
doi = {10.1007/S10948-017-4219-X},
journal = {Journal of Superconductivity and Novel Magnetism},
issn = {1557-1939},
number = 2,
volume = 31,
place = {United States},
year = {2018},
month = {2}
}