Comparison between Powders of Strontium Hexaferrite Processed by Dynamic Gas Heat Treatment and Re-Calcination

• Authors: F. Tudorache , F. Brinza , P. Popa , I. Petrila , M. Grigoras , S. Tascu
• Languages of publication: EN

Abstracts

EN

The utilization of classical ceramic technology for ferrite preparation permits to obtain strontium hexaferrite with big crystals, of micrometer size, with a smaller coercive force than the hexaferrite with submicron crystals. In this work the strontium hexaferrite was obtained with submicron crystals, by hot reduction of the hexaferrite obtained through ceramic technology in CO atmosphere, followed by the thermal re-oxidization in air. The effects of treatment in CO atmosphere and of the re-calcination treatment on the magnetic and electric properties of the strontium hexaferrite were investigated.

Keywords

EN

75.50.Vv; 75.47.Lx

Discipline

• 75.47.Lx: Magnetic oxides
• 75.50.Vv: High coercivity materials

• Journal: Acta Physica Polonica A
• Year: 2012
• Volume: 121
• Issue: 1
• Pages: 92-94

Dates

published

2012-01

Contributors

author

F. Tudorache

• Department of Physics, "Alexandru Ioan Cuza" University of Iasi, Blvd. Carol I, no. 11, 700506, Iasi, Romania

author

F. Brinza

• Department of Physics, "Alexandru Ioan Cuza" University of Iasi, Blvd. Carol I, no. 11, 700506, Iasi, Romania

author

P. Popa

• National Institute of R&D for Technical Physics-IFT Iasi, Blvd. D. Mangeron, no. 47, 700050, Iasi, Romania

author

I. Petrila

• Department of Physics, "Alexandru Ioan Cuza" University of Iasi, Blvd. Carol I, no. 11, 700506, Iasi, Romania

author

M. Grigoras

• Petru Poni Institute of Macromolecular Chemistry, 41A, Gr. Ghica Voda Alley, 700487, Iasi, Romania

author

S. Tascu

• Department of Physics, "Alexandru Ioan Cuza" University of Iasi, Blvd. Carol I, no. 11, 700506, Iasi, Romania

References

• 1. Y.M. Sun, W.Q. Yu, Z. Hua, Acta Phys. Pol. A 119, 374 (2011)
• 2. J. Fang, J. Wang, L.-M. Gan, S.-C. Ng, J. Ding, X. Liu, J. Am. Ceram. Soc. 83, 1049 (2000)
• 3. C. Doroftei, E. Rezlescu, N. Rezlescu, F. Tudorache, P.D. Popa, J. Optoelectron Adv. M. 10, 2919 (2008)
• 4. Z. Surowiec, W. Gac, M. Wiertel, Acta Phys. Pol. A 119, 18 (2011)
• 5. F. Tudorache, E. Rezlescu, P.D. Popa, N. Rezlescu, J. Optoelectron Adv. M. 10, 1889 (2008)

Identifiers

DOI

10.12693/APhysPolA.121.92