Formation of c-Axis Aligned Hydroxyapatite Sheet by Simultaneous Imposition of High Magnetic Field and Mold Rotation During Slip Casting Process

Abstract:

A high magnetic field is a useful tool to control the crystal alignment of non-magnetic materials such as ceramics and polymers. In the case of Hydroxyapatite crystal, the a,b-axis is aligned parallel to the direction of an imposed magnetic field. This fact implies that the alignment of the c-axis is not controllable only using a high static magnetic field due to the freedom of the c-axis in a plane perpendicular to a magnetic field direction. In this study, a high static magnetic field and mold rotation was simultaneously so applied during a slip casting process as to align the c-axis of HAp poly crystals.

• Periodical: Key Engineering Materials (Volumes 309-311)
• Pages: 53-56
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.309-311.53
• Online since: May 2006
• Authors: Jun Akiyama, Masami Hashimoto, Hiroaki Takadama, Fukue Nagata, Yoshiyuki Yokogawa, Kensuke Sassa, Kazuhiko Iwai, Shigeo Asai
• Keywords: Crystal Alignment, High Magnetic Field, Hydroxyapatite (HAP), Mold Rotation

References

[1] T. Kawasaki:J. of. Chromatography 151 (1978), pp.95-112.

[2] T. Kawasaki, M. Nimura and Y. Kobayashi: J. of. Chromatography 515 (1990), pp.91-123.

[3] K. Inoue, T. Marukawa, K. Sassa, Y. Yokogawa, Y. Sakka, M. Okido and S. Asai : Key Engineering Materials 240-242 (2003), pp.513-516.

DOI: 10.4028/www.scientific.net/kem.240-242.513

[4] K. Inoue, K. Sassa, Y. Yokogawa, Y. Sakka, M. Okido and S. Asai: Mater. Trans. 44 (2003), pp.1133-1137.

DOI: 10.2320/matertrans.44.1133