For Libraries For Publication Open Access Downloads About Us Contact Us
Paper Titles
The Optimization of the Technologic Parameter in Strong Cooling with Single-Tube on the A356 Alloy
p.98
Effect of Friction Temperature on Spheroidization and Refinement of Si Particles in Hypereutectic Al-Si Alloys
p.102
Flame Retardant Composites of Rare Earth Oxides/ Conventional Flame Retardants/ Silicone Rubber with Good Self-Extinguishing
p.108
Green's Function Approach to Crossover Properties for Interaction Parameters of an N-Layer Ferroelectric Thin Film
p.116
Preparation and Characterization of BaFe12O19 Hollow Nanocrystalline Aggregations
p.121
Structure and Performance of 35 Steel after Strengthened Shot Peening Surface Nanocrystallization and Gas Tufftriding Process
p.125
Absorptive and Biodegraded Polyurethane Foamed Urea
p.131
Study on Photodynamic Therapy for HL60 Cells Inactivation by Visible Light-Induced Fe-Doped Nano-TiO2 under Magnetic Field
p.136
Two Nickel-Bipyridinedicarboxylate Organic-Inorganic Hybrid Materials: Hydrothermal Synthesis, Crystal Structure and Thermal Properties
p.144

Preparation and Characterization of BaFe12O19 Hollow Nanocrystalline Aggregations

Article Preview

Abstract:

M-type BaFe12O19 nanocrystalline aggregations were prepared by the citrate sol-gel method, using Fe(NO3)3 and Ba(NO3)2 as raw materials, urea and ethanol as the soft template. The samples were investigated by SEM, TEM, FT-IR, XRD and VSM. SEM and TEM micrographs show the product is hollow nanocrystalline aggregations with microporous. XRD patterns indicate M-type BaFe12O19 aggregations with mesoporous are purity and well crystallinity, the average size of the primary crystals of the aggregations is 48nm. Saturation magnetization and coercivity of the aggregations is 55.3emu/g and 5403Oe, respectively, which are higher than these of previous BaFe12O19 nano-particles reported in the literature.

You might also be interested in these eBooks
New Materials and Advanced Materials View Preview

Info:

Periodical:

Advanced Materials Research (Volumes 152-153)

Pages:

121-124

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.152-153.121

Citation:

Cite this paper

Online since:

October 2010

Authors:

Hai Qing Huang, Guo Xuan Xiong

Keywords:

Aggregation, Ferrite, Mesopore Structure, Nanocrystallite, Porous, Sol-Gel (SG)

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2011 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

References

[1] F. F. Guo, J. F. Xu, Z. Xu: J. Mater. Sci. Eng. Vol. 22(2004), p.872.

Google Scholar

[2] B. Shirk, W. Buessem: J. Am. Ceram. Soc. Vol. 53(2006), p.192.

Google Scholar

[3] F. Caruso, M. Spasova, A. Susha, et al.: Chem. Mater. Vol. 13(2001), p.109.

Google Scholar

[4] H. Shiho, N. Kawahashi: J. Colloid. Interface. Sci. Vol. 226(2000), p.91.

Google Scholar

[5] Z.P. Gan, J.G. Guang: Acta Phys. -Chim. Sin. Vol. 22(2006), p.189 (in chinese).

Google Scholar

[6] Z.Q. Yao, Q. Wang, B. Zhong: J. Func. Mater. Vol. 29(1998), p.471(in chinese).

Google Scholar

[7] T. Gonzalez-Carreno, M. Morales, C. Serna: Mater. Lett. Vol. 43(2000), p.97.

Google Scholar

[8] K. Haneda, A. Morrish: IEEE Trans. Magn. Vol. 25(1989), p.2597.

Google Scholar

[9] B. Shirk, W. Buessem: J. Appl. Phys. Vol. 40(1969), p.1294.

Google Scholar

[10] G. Ward and K. Sandhage: J. Am. Ceram. Soc. Vol. 80(2005), p.1508.

Google Scholar

© 2025 Trans Tech Publications Ltd. All rights are reserved, including those for text and data mining, AI training, and similar technologies. For open access content, terms of the Creative Commons licensing CC-BY are applied.
Scientific.Net is a registered trademark of Trans Tech Publications Ltd.