DocumentCode :
2276650
Title :
The aging effect in (Bi0.5Na0.5) TiO3 family with point defects
Author :
Hidaka, Y. ; Tsukada, S. ; Kano, J. ; Kojima, S.
Author_Institution :
Tsukuba Univ., Ibaraki
fYear :
2007
fDate :
27-31 May 2007
Firstpage :
305
Lastpage :
307
Abstract :
We have studied the aging effect of bismuth sodium titanate (BNT) ceramics with point defects. With aging BNT ceramics, we have observed slight decrease in BNT permittivity. Permittivity vs. aging time is well reproduced by assumed Debye-relaxation. It is found that there are two relaxation processes in this aging effect. The diffuseness of phase transition is determined from the temperature dependence of permittivity. The diffuseness vs. composition shows the correlation clearly.
Keywords :
ageing; bismuth compounds; dielectric relaxation; ferroelectric transitions; permittivity; piezoceramics; point defects; sodium compounds; BNT ceramics; Bi0.6Na0.5TiO3; Debye relaxation; aging effect; permittivity; phase transition; piezoelectric materials; point defects; Aging; Bismuth; Ceramics; Environmentally friendly manufacturing techniques; Ferroelectric materials; Frequency; Permittivity measurement; Piezoelectric materials; Temperature dependence; Temperature measurement;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Applications of Ferroelectrics, 2007. ISAF 2007. Sixteenth IEEE International Symposium on
Conference_Location :
Nara
ISSN :
1099-4734
Print_ISBN :
978-1-4244-1334-8
Electronic_ISBN :
1099-4734
Type :
conf
DOI :
10.1109/ISAF.2007.4393249
Filename :
4393249
Link To Document :
https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=2276650
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