Structure Control of Hydroxyapatite Using a Magnetic Field
A high magnetic field is a useful tool to control the crystal alignment of ceramic materials. In this study, a horizontal 10T static magnetic field was imposed on slurry containing hydroxyapatite (HAp) crystals under the horizontal mold rotation during slip casting process so as to introduce uni-axial alignment for some amount of crystals in the sample, and then it was sintered in atmosphere without the magnetic field. From X-ray diffraction, it has been found that the HAp crystals in the sample treated with the mold rotation under the magnetic field were aligned its c-axis to a particular direction.
Young Won Chang, Nack J. Kim and Chong Soo Lee
K. Iwai et al., "Structure Control of Hydroxyapatite Using a Magnetic Field", Materials Science Forum, Vols. 561-565, pp. 1565-1568, 2007