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Effect of Particle Sizes of Starting Materials on Microstructure Development in Textured Bi 0.5 (Na 0.5 K 0.5 ) 0.5 TiO 3
Author(s) -
Fuse Kaori,
Kimura Toshio
Publication year - 2006
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.1551-2916.2006.01023.x
Subject(s) - equiaxed crystals , microstructure , materials science , texture (cosmology) , grain growth , sintering , calcination , ceramic , particle (ecology) , grain size , matrix (chemical analysis) , particle size , composite material , metallurgy , chemical engineering , chemistry , biochemistry , image (mathematics) , oceanography , artificial intelligence , computer science , engineering , geology , catalysis
Microstructure development in Bi 0.5 (Na 0.5 K 0.5 ) 0.5 TiO 3 prepared by a reactive‐templated grain growth process was dependent on the sizes of platelike Bi 4 Ti 3 O 12 (BiT) and equiaxed TiO 2 particles used as starting materials. Calcined compacts were composed of large, platelike template grains and small, equiaxed matrix grains, the sizes of which were determined by those of the BiT and TiO 2 particles, respectively. Texture was developed by the growth of template grains at the expense of matrix grains during sintering, and a new mechanism of grain growth was proposed on the basis of microstructure observation. The grain growth rate was determined by the template and matrix grain sizes, and a dense ceramic with extensive texture was obtained using small BiT and TiO 2 particles.