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Fabrication of Barium Titanate Single Crystals by Solid‐State Grain Growth
Author(s) -
Yamamoto Takahisa,
Sakuma Taketo
Publication year - 1994
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.1151-2916.1994.tb07281.x
Subject(s) - barium titanate , materials science , grain growth , crystallite , abnormal grain growth , annealing (glass) , fabrication , crystal growth , seeding , single crystal , grain size , crystallography , chemical engineering , mineralogy , seed crystal , solid state , composite material , metallurgy , ceramic , chemistry , thermodynamics , medicine , alternative medicine , physics , pathology , engineering
BaTiO 3 single crystals were prepared by solid‐state grain growth. The single crystals were obtained by seeding a poly‐crystalline, TiO 2 ‐excess BaTiO 3 , which exhibited abnormal grain growth. The condition for single‐crystal growth was essentially dependent on the grain growth behavior of the polycrystalline, sintered bodies. The annealing temperature suitable for the single‐crystal growth was just below the critical temperature of abnormal grain growth in TiO 2 ‐excess BaTiO 3 , which is about 1300°C.