Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 69: Issue 3
Structural study of perovskite-type fine particles by synchrotron radiation powder diffraction
Authors:
Y. Kuroiwa Okayama University Department of Physics 3-1-1 Tsushima Okayama 700-8530 Japan 3-1-1 Tsushima Okayama 700-8530 Japan

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S. Aoyagi Okayama University Department of Physics 3-1-1 Tsushima Okayama 700-8530 Japan 3-1-1 Tsushima Okayama 700-8530 Japan

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A. Sawada Okayama University Department of Physics 3-1-1 Tsushima Okayama 700-8530 Japan 3-1-1 Tsushima Okayama 700-8530 Japan

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H. Ikawa Kanagawa Institute of Technology Department of Applied Chemistry 1030 Shimoogino Atsugi 243-0292 Japan 1030 Shimoogino Atsugi 243-0292 Japan

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I. Yamashita Tokyo Institute of Technology Materials and Structures Laboratory 4259 Nagatsuta-cho Midori-ku Yokohama 226-8503 Japan 4259 Nagatsuta-cho Midori-ku Yokohama 226-8503 Japan

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N. Inoue Tokyo Institute of Technology Materials and Structures Laboratory 4259 Nagatsuta-cho Midori-ku Yokohama 226-8503 Japan 4259 Nagatsuta-cho Midori-ku Yokohama 226-8503 Japan

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T. Atake Tokyo Institute of Technology Materials and Structures Laboratory 4259 Nagatsuta-cho Midori-ku Yokohama 226-8503 Japan 4259 Nagatsuta-cho Midori-ku Yokohama 226-8503 Japan

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Pages:
933–938
Online Publication Date:
02 Nov 2004
Publication Date:
01 Jul 2002
Article Category:
Research Article
DOI:
https://doi.org/10.1023/a:1020676510622
Keywords:
PbTiO3; nanoparticle; BaTiO3; fine particle; X-ray diffraction; crystal structure; size effect; synchrotron radiation
Restricted access

Abstract  

The crystal structures of BaTiO3 and PbTiO3 fine particles have been investigated by powder diffraction using synchrotron radiation high energy X-rays. It is revealed that a BaTiO3 fine particle essentially consists of tetragonal and cubic structure components at 300 K, whereas a PbTiO3 fine particle consists of a tetragonal structure. Adopting a structure model for the BaTiO3 particle that a cubic shell covers a tetragonal core, the thickness of cubic BaTiO3 shell is estimated at almost constant irrespective of particle sizes. Successive phase transitions are detected in 100 nm particles of BaTiO3 near the phase-transition temperatures of a bulk crystal. The changes in diffraction profiles are small, but they are apparent for a most up-to-date powder diffractometry.

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Cover Journal of Thermal Analysis and Calorimetry
Journal of Thermal Analysis and Calorimetry
Print ISSN:
1388-6150
Online ISSN:
1572-8943

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation		 1969
Volumes
per Year		 1
Issues
per Year		 24
Founder Akadémiai Kiadó
Founder's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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