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Factors Determining Grain Orientation in Bismuth Sodium Potassium Titanate–Lead Zirconate Titanate Solid Solutions Made by the Reactive Templated Grain Growth Method
Author(s) -
Abe Yuichi,
Kimura Toshio
Publication year - 2002
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.1151-2916.2002.tb00231.x
Subject(s) - materials science , lead zirconate titanate , bismuth titanate , bismuth , ceramic , zirconate , grain growth , grain size , titanate , chemical engineering , ferroelectricity , composite material , titanium , potassium niobate , raw material , mineralogy , metallurgy , dielectric , chemistry , optoelectronics , organic chemistry , engineering
Grain‐oriented Bi 0.5 (Na 0.85 K 0.15 ) 0.5 TiO 3 ‐Pb(Zr 1− x Ti x )O 3 (BNKT‐PZT) ceramics were prepared via the reactive templated grain growth method, using platelike Bi 4 Ti 3 O 12 particles. Factors that determine the degree of orientation were examined. Prereacted PZT gave a larger degree of orientation than PZT raw materials (PbO, ZrO 2 , and TiO 2 ) in the 75BNKT‐25PZT ( x = 0.5) system. Increases in the titanium concentration in the PZT of the 75BNKT‐25PZT system and in the BNKT concentration in the y BNKT‐(100 − y )PZT ( x = 0.5) system increased the degree of orientation. The direction of material transport between BNKT and PZT was important to obtain ceramics with a large degree of orientation.