[13p-A34-1~6] Material processing using magnetic field effect on feeble magnetic

[13p-A34-2] Crystal-oriented Functional Ceramics Prepared by Magnetic Field Assisted Forming and Subsequent Sintering

〇Satoshi Tanaka¹ (1.Nagaoka Univ. Tech.)

Keywords:crystal orientation, magnetic field

The orientation process using magnetic field is an effective method for development of functional polycrystalline ceramics. In this method, crystal axis of particles can be oriented to desirable direction by using an anisotropy of magnetic susceptibility in strong magnetic field. In this presentation, we report the development of crystal-oriented polycrystalline ceramics using this technique. We introduce to fabricate a non-lead piezoelectric material, (SrCa)₂NaNb₅O₁₅ ceramic and an electro-optical material (Sr_0.6Ba_0.4)Nb₂O₆ ceramic. Besides, we present a novel colloidal processing using UV curable resin for shortening the drying time in the magnetic field, and we can achieve highly particle-oriented structures.