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Preferred Grain Orientation Relationships in Sintered Perovskite Ceramics
Author(s) -
Ernst Frank,
Mulvihill Maureen L.,
Kienzle Oliver,
Rühle Manfred
Publication year - 2001
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.1151-2916.2001.tb00931.x
Subject(s) - materials science , electron backscatter diffraction , texture (cosmology) , perovskite (structure) , scanning electron microscope , orientation (vector space) , ceramic , grain boundary , sintering , mineralogy , diffraction , crystallography , composite material , microstructure , optics , geology , chemistry , geometry , image (mathematics) , physics , mathematics , artificial intelligence , computer science
Sintered BaTiO 3 , SrTiO 3 , and Pb(Zr x Ti 1− x )O 3 ceramics were examined using orientation imaging microscopy (OIM TM ), which is a system for the automated measurement of grain orientations by evaluating electron backscatter diffraction patterns in scanning electron microscopy. As expected for sintered materials, none of the three materials exhibited a pronounced texture. However, analysis of the orientation relationships (ORs) between adjacent grains revealed a statistically significant preference of Σ= 3 ORs. Accordingly, the boundaries between grains with a Σ= 3 OR were particularly important for the macroscopic properties of the materials in question.