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 In order to correlate dielectric relaxation properties with chemical homogeneity and microstructure in ferroelectric ceramics, powders are prepared both by sol-gel route and solid-state reaction. This comparative study concerns Ba(Ti0.8Zr0.2)O3 ceramics, with maximum permittivity close to room temperature. Dielectric relaxation is reported in the frequency and temperature ranges 106 to 109 Hz and 250–350 K, respectively. A minimum of the relaxation frequency occurs close to the phase transition temperature. The variations off r are correlated with chemical homogeneity and microstructure.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01191955
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