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Fabrication of Textured Si 3 N 4 Ceramics by Slip Casting in a High Magnetic Field
Author(s) -
Li Shuqin,
Sassa Kensuke,
Asai Shigeo
Publication year - 2004
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.2004.tb07743.x
Subject(s) - materials science , ceramic , slip (aerodynamics) , anisotropy , texture (cosmology) , fabrication , composite material , magnetic field , sintering , scanning electron microscope , condensed matter physics , diffraction , optics , medicine , physics , image (mathematics) , alternative medicine , pathology , quantum mechanics , artificial intelligence , computer science , thermodynamics
Developing the texture of ceramics is one of the effective ways for improving properties. Although the magnetic susceptibility of nonmagnetic materials is very small, there is a possibility to control the crystal orientation using a high magnetic field due to a magnetic anisotropy. In this study, Si 3 N 4 ceramics were manufactured by a slip‐casting process under high magnetic field and pressureless sintering. The texture of Si 3 N 4 ceramics was studied using X‐ray diffraction and scanning electron micrographs of polished and plasma‐etched specimens. It has been found that most of the a,b ‐axes texture of β‐Si 3 N 4 grains aligned to the magnetic field direction.