Effect of Template Particle Formation on Texture Development in Bi0.5Na0.5TiO3 Ceramics

2008 ◽  
Vol 388 ◽  
pp. 209-212 ◽  
Author(s):  
Toshio Kimura ◽  
Takao Motohashi

The factor determining texture development was examined for Bi0.5Na0.5TiO3 ceramics made by the reactive-templated grain growth process using platelike Bi4Ti3O12 particles as reactive template. Platelike, skeleton Bi0.5Na0.5TiO3 particles were formed by the reaction between Bi4Ti3O12 and Na2CO3 in calcined compacts. Coalescence of small grains in the skeleton particles to form single template particles was important to obtain highly textured ceramics.

2010 ◽  
Vol 663-665 ◽  
pp. 1024-1027
Author(s):  
Wei Zhao ◽  
Ruo Cai Pan ◽  
Hao Xue

Micro-scale plake-like SrTO3 particles were synthesized by two routes of topochemical conversion. One is by growing on Sr3Ti2O7 (S3T2) core particles in molten salt condition, and the other is from the layer-structured SrBi4Ti4O15 (SBT) precursor in a KCl medium. The effects of the morphology and size of the precursor to platelet SrTiO3 crystals were studied. X-ray diffraction analysis revealed that the crystallographic {010} plane of SBT was converted into the pseudo-cubic {001} plane of SrTiO3. The polycrystalline SrTiO3 particles from BST precursor exhibited a plate-like shape with 10-15μm in length and a high aspect ratio, and were more suitable for preparing textured ceramics by templated grain growth process than the platelets from the S3T2 precursors.


2004 ◽  
Vol 264-268 ◽  
pp. 1285-1288 ◽  
Author(s):  
K. Yurdal ◽  
Cihangir Duran ◽  
S. Alkoy ◽  
H.I. Bakan

1998 ◽  
pp. 303-310 ◽  
Author(s):  
M. M. Seabaugh ◽  
S. H. Hong ◽  
G. L. Messing

2006 ◽  
Vol 320 ◽  
pp. 15-18 ◽  
Author(s):  
Takuya Sawada ◽  
Hirozumi Ogawa ◽  
Masahiko Kimura ◽  
Kosuke Shiratsuyu ◽  
Akira Ando

A study has been done for the piezoelectric properties in texured ceramics of SrBi2Nb2O9 (SBN) fabricated by the templated grain growth (TGG) method. Remanent polarization along to the stacking direction increased with the orientation degrees. That corresponds to the increases in electro-mechanical coupling coefficient with orientation degree. The temperature coefficient of the resonant frequency (TCF) in thickness sheer vibration mode changed from negative to positive with increasing orientation degrees, and an excellent TCF of -0.4 ppm/°C was obtained for the specimen with an orientation degree of 76%.


2013 ◽  
Vol 97 (2) ◽  
pp. 420-426 ◽  
Author(s):  
Harvey Amorín ◽  
Hana Uršič ◽  
Pablo Ramos ◽  
Janez Holc ◽  
Rodrigo Moreno ◽  
...  

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