Effect of PFT substitution on dielectric properties of PFW-PFN perovskite ceramics.

Autor: Lee, B.-H., Min, K.-K., Kim, N.-K.
Předmět:
Zdroj: Journal of Materials Science; Jan2000, Vol. 35 Issue 1, p197-201, 5p
Abstrakt: Perovskite phase formation and dielectric characteristics of $$Pb(Fe_{2/3} W_{1/3} )O_3 - Pb(Fe_{1/2} Nb_{1/2} )O_3$$ ceramic system with addition of $$Pb(Fe_{1/2} Ta_{1/2} )O_3$$ were investigated in order to examine the influence of $$Pb(Fe_{1/2} Ta_{1/2} )O_3$$ . The ceramic system powders were synthesized via a B-site precursor route. Peculiar behaviors of frequency dispersion in dielectric constant spectra in the paraelectric region were observed due to increasing conductivity. Lattice parameters, dielectric maximum temperatures, and maximum dielectric constants increased with increasing $$Pb(Fe_{1/2} Nb_{1/2} )O_3$$ content. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index