ISSN:
1573-4803
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Abstract Dielectric measurements on Pb2K(Nb0.1Ta0.9)5O15 ceramics have been reported at 140〈T〈530 K in the 20–109 Hz frequency range. The tetragonal tungsten bronze-type (TTB) material shows a typical ferroelectric relaxor behaviour. Three dielectric dispersions are observed. The relaxor behaviour results from a thermally activated relaxation with a large time distribution. This relaxation could be interpreted in terms of a polar microdomain concept. The two other dielectric dispersions result from a space charge effect and from a relaxation probably related to the TTB structure.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00356727
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