Paper Titles
Effects of Different Debinding Atmosphere on the Properties of Powder Injection Molded AlN Ceramics
p.1028
Near-Net Shaping of Microwave Ceramics by Gel-Casting with Carrageenan
p.1031
Extrusion Forming of Cordierite Honeycomb with Hexagonal Open Cells
p.1035
Preparation of PZT Slurry with High Solids Loading and Low Viscosity for Gelcasting
p.1038
Magnetic Alignments of Ba-Ferrite Particles in Suspension
p.1042
Synthesis of Fine Grain Ti3SiC2 by Spark Plasma Sintering with Additive of Aluminum
p.1046
Fabrication of TiAl Intermetallic by Spark Plasma Sintering
p.1050
Spark Plasma Sintering of CBN-WC-10Co Composites
p.1053
Preparation of Porous Alumina Ceramics by Spark Plasma Sintering
p.1056

Magnetic Alignments of Ba-Ferrite Particles in Suspension

Article Preview

Abstract:

Ba-ferrite particles were dispersed into distilled water to make stable slurry, which was then slip cast in transverse magnetic field. The water drainage from the slurry was performed by vacuum evacuation to solidify the slurry into a cake – like sample. To obtain high degree of alignments, the slurries were slip cast in static – / pulsed – magnetic field and by using two separate steps of magnetic orientation and drainage. The particles turned their faces to the magnetic field and formed long chains stacked immediately while the magnetic field was applied, of which high induction density led to high degree of alignments. It is necessary to correspond with the drainage, gravity and magnetism so as to suppress the tendency of distortion or cracking of the sample as the aligned long chains of the particles tend to break into pieces and cave in randomly, which eventually destroys the particle alignments.

You might also be interested in these eBooks
High-Performance Ceramics IV View Preview

Info:

Periodical:

Key Engineering Materials (Volumes 336-338)

Pages:

1042-1045

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.336-338.1042

Citation:

Cite this paper

Online since:

April 2007

Authors:

Jing Long Li, Saburo Sano, Jiang Tao Xiong, Fu Sheng Zhang, Zhong Ping Wang

Keywords:

Ba-Ferrites, Magnetic Alignment, Slip Casting, Slurry

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2007 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

References

[1] P. Campbell: Permanent Magnet Materials and Their Application (Cambridge University Press, Cambridge 1994).

Google Scholar

[2] D. -H. Chen and Y. -Y. Chen: J. Colloid Interface Sci., Vol. 235.

Google Scholar

[1] (2001), pp.9-14.

Google Scholar

[3] D. B. Hovis and K. T. Faber, Scripta Mater., Vol. 44 (2001), pp.2525-2529.

Google Scholar

[4] J. -L. Li, S. Sano, A. Tsuzuki, A. Gotou, F. -S. Zhang, J. -T. Xiong, Y. Zhang and T. -J. Ma: Mechanical Science and Technology, Vol. 23, No. 12 (2004), pp.1437-1439. (in Chinese).

Google Scholar

[5] J. -L. Li, S. Sano, A. Tsuzuki, A. Gotou, Y. Shibasaki, F. -S. Zhang, J. -T. Xiong, Y. Zhang and T. -J. Ma: Ceramic Society of Japan Series, Vol. 14 (2005), (in print).

Google Scholar