Advances in Materials Physics and Chemistry

Volume 4, Issue 3 (March 2014)

ISSN Print: 2162-531X   ISSN Online: 2162-5328

Google-based Impact Factor: 0.63  Citations  

Mechano-Synthesized Orthoferrite Starting from Wüstite Assisted by SPS

HTML  Download Download as PDF (Size: 1036KB)  PP. 43-49  
DOI: 10.4236/ampc.2014.43007    4,675 Downloads   6,625 Views  

ABSTRACT

Stoichiometric mixtures of FeO and Y2O3 were milled and heat treated to obtain yttrium iron garnet, Y3Fe5O12. Two types of heating systems were used: one, a spark plasma sintering machine and the second, an electrical oven. The magnetic properties of the resulting specimens have been analyzed and discussed as a function of the grain size and the particles’ morphology. The partial formation of garnet and orthoferrite phases was revealed on the obtained powder through microstructural analyses after 9 h of ball milling. The milled powders were transformed into the orthoferrite phase after the SPS-treatment at 700°C and 900°C. Magnetic-saturation studies revealed magnetic responses up to 12.7 emu/g for specimens SPS-treated at 700°C, whereas 2.1 emu/g for samples SPS-treated at 900°C. Conventionally treated specimens at 700°C developed 0.36 emu/g of magnetization, while 0.93 emu/g was registered for those treated at 900°C.

Share and Cite:

Cortés-Escobedo, C. , Sánchez-De Jesus, F. , Bolarín-Miró, A. , Nowak, S. , Juárez-Camacho, E. , de la Torre, S. and Valenzuela, R. (2014) Mechano-Synthesized Orthoferrite Starting from Wüstite Assisted by SPS. Advances in Materials Physics and Chemistry, 4, 43-49. doi: 10.4236/ampc.2014.43007.

Cited by

No relevant information.

Copyright © 2024 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.