Title :
Composite Structure and Size Effect of Barium Titanate Nanoparticles
Author :
Hoshina, T. ; Wada, S. ; Kuroiwa, Y. ; Kakemoto, H. ; Tsurumi, T.
Author_Institution :
Tokyo Inst. of Technol., Tokyo
Abstract :
Almost impurity and defect-free barium titanate (BaTiO3) nanoparticles with various sizes from 20 to 430 nm were prepared using 2-step thermal decomposition method. The nano-structures of these particles were analyzed using a synchrotron radiation X-ray diffraction (XRD). As a result, it was found that the BaTiO3 nanoparticles had composite structure consisted of (a) internal tetragonal layer, (b) Gradient-Lattice-Strain Layer (GLSL) and (c) surface cubic layer.
Keywords :
X-ray diffraction; barium compounds; crystal structure; ferroelectric ceramics; nanoparticles; permittivity; pyrolysis; size effect; 2 step thermal decomposition method; BaTiO3; GLSL; X-ray diffraction analysis; barium titanate nanoparticle composite structure; barium titanate nanoparticle size effect; defect free barium titanate nanoparticle; gradient-lattice-strain layer; impurity free barium titanate nanoparticle; internal tetragonal layer; size 20 nm to 430 nm; surface cubic layer; synchrotron radiation XRD; Barium; Dielectric constant; Diffraction; Impurities; Materials science and technology; Nanoparticles; Synchrotron radiation; Thermal decomposition; Titanium compounds; X-ray scattering;
Conference_Titel :
Applications of Ferroelectrics, 2007. ISAF 2007. Sixteenth IEEE International Symposium on
Conference_Location :
Nara
Print_ISBN :
978-1-4244-1334-8
Electronic_ISBN :
1099-4734
DOI :
10.1109/ISAF.2007.4393303
