화학공학소재연구정보센터
Journal of Materials Science, Vol.39, No.3, 861-865, 2004
Fabrication of textured alumina by electrophoretic deposition in a strong magnetic field
Textured alumina ceramics were fabricated by electrophoretic deposition in a strong magnetic field of 10 T (Tesla) followed by sintering. Single crystalline alpha-alumina particles dispersed in aqueous media were aligned due to their anisotropic diamagnetic susceptibility and then deposited on a cathodic substrate. The degree of crystalline orientation of the as-deposited specimen characterized by X-ray diffraction was small but highly improved by sintering in the temperature range of 1273-1873 K. Microstructural observations showed the absence of any anisotropic grain growth. (C) 2004 Kluwer Academic Publishers.