DocumentCode
2092277
Title
The nature of dielectric thermostability of barium lantanoid tetratitanates
Author
Poplavko, Yu M. ; Ilchenko, M E ; Butko, V I
fYear
1993
fDate
6-10 Sept. 1993
Firstpage
600
Lastpage
602
Abstract
The problem of combining in barium lantanoid tetratitanates (BLT) polycrystalline compositions a high dielectric permittivity with its temperature independence and low microwave losses has been revealed. It is suggested that 4f/5d lantanoid bonds viscously suppress the interaction of large polarizable TiO6 octahedrons. This hypothesis has been verified by intensive electronic relaxation process with a low activation energy and by submillimeter waves absorption. Because of the last the microwave applications of BLT-compositions is bounded by frequency limit 3-5 GHz.
Keywords
Barium; Ceramics; Crystals; Dielectric losses; Frequency; Lattices; Permittivity; Polarization; Stability; Temperature;
fLanguage
English
Publisher
ieee
Conference_Titel
Microwave Conference, 1993. 23rd European
Conference_Location
Madrid, Spain
Type
conf
DOI
10.1109/EUMA.1993.336640
Filename
4136701
Link To Document