公开(公告)号：US20180044568A1

公开(公告)日：2018-02-15

申请号：US15555532

申请日：2016-03-04

Applicant: Kanagawa Institute of Industrial Science and Technology ,  National University Corporation YOKOHAMA National University

Inventor： Takuma TAKAHASHI ,  Junichi TATAMI ,  Nanako SUGIMOTO

IPC: C09K5/14 ,  C04B35/80 ,  H01F1/11 ,  C04B35/63 ,  C04B35/634 ,  C04B35/64 ,  C04B35/584 ,  C04B35/628

CPC classification number: C09K5/14 ,  C04B35/10 ,  C04B35/117 ,  C04B35/584 ,  C04B35/5935 ,  C04B35/62635 ,  C04B35/62839 ,  C04B35/62847 ,  C04B35/62881 ,  C04B35/62892 ,  C04B35/6303 ,  C04B35/63444 ,  C04B35/64 ,  C04B35/803 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3218 ,  C04B2235/3225 ,  C04B2235/3244 ,  C04B2235/3418 ,  C04B2235/3878 ,  C04B2235/3882 ,  C04B2235/422 ,  C04B2235/425 ,  C04B2235/448 ,  C04B2235/522 ,  C04B2235/5224 ,  C04B2235/5292 ,  C04B2235/5296 ,  C04B2235/5445 ,  C04B2235/6027 ,  C04B2235/605 ,  C04B2235/76 ,  C04B2235/787 ,  C04B2235/9607 ,  H01F1/11

Abstract: A production process for a crystal oriented ceramics includes: a first step of preparing composite particles formed of particles having magnetic anisotropy having magnetic susceptibility anisotropy and seed particles having magnetic susceptibility anisotropy less than or equal to 1/10 of the magnetic susceptibility anisotropy of the particles having magnetic anisotropy and are formed of an inorganic compound having an anisotropic shape in which a crystal axis intended to be corresponds to a minor axis or a major axis; a second step of adding raw material powder including the composite particles to a solvent to prepare a slurry a third step of preparing a green compact by disposing the slurry in a static magnetic field of >0.1 tesla and drying the slurry in a state in which crystal axes of the seed particles in a major axis direction are in one direction; and a fourth step of sintering the green compact.