Title :
High frequency dielectric relaxation in Pb(Mg0.317Nb0.633Ti0.05)O3 ceramics
Author :
Elissalde, C. ; Ravez, J. ; Gaucher, P.
Author_Institution :
Bordeaux I Univ., Talence, France
fDate :
30 Aug-2 Sep 1992
Abstract :
Dielectric measurements have been performed on Pb(Mg0.317 Nb0.633Ti0.05)O3 ceramics in the frequency and temperature ranges 106-109 Hz and 110-400 K, respectively. A dielectric relaxation of the Cole-Cole type has been found between 107 and 109 Hz, depending on the temperature. This relaxation exists not only in the ferroelectric phase but also in the paraelectric one. A minimum of the relaxation frequency occurs at temperatures close to the Curie temperature
Keywords :
ceramics; dielectric relaxation; ferroelectric Curie temperature; lead compounds; permittivity; 106 to 109 Hz; 110 to 400 K; Cole-Cole relaxation; Curie temperature; Pb(Mg0.317Nb0.633Ti0.05)O3 ceramics; PbMgO3NbO3TiO3; ferroelectric phase; frequency dependence; high frequency dielectric relaxation; paraelectric phase; permittivity; relaxation frequency; temperature dependence; Ceramics; Dielectric measurements; Ferroelectric materials; Frequency; Lead; Niobium; Performance evaluation; Permittivity; Temperature dependence; Temperature distribution;
Conference_Titel :
Applications of Ferroelectrics, 1992. ISAF '92., Proceedings of the Eighth IEEE International Symposium on
Conference_Location :
Greenville, SC
Print_ISBN :
0-7803-0465-9
DOI :
10.1109/ISAF.1992.300592
