Institut Jožef Stefan, Ljubljana (IJS)
  • The effect of partial isovalent substitution in the A-sublattice on MW properties of materials based on ▫$Ba_{6-x}Ln_{8+2x/3}Ti_{18}O_{54}$▫ solid solutions
    Belous, A> G. ...
    Investigations of materials based on the three systems: (Ba1ŠyPby)6ŠxLa8+2x/3Ti18O54, (Ba1ŠyPby)6ŠxNd8+2x/3Ti18O54, and (Ba1ŠyCay)6ŠxLn8+2x/3Ti18O54 revealed that a partial isovalent substitution ... incation sublattices allows the control of the electrophysical parameters of microwave dielectrics. The investigations were carried out over a wide range of x values. Data on the relationship between the crystal-cell parameters and the microwave dielectric properties (, Q, and tf) have been obtained and related to the size of the isovalent ion residing at crystallographic sites in the A-sublattice. Based on the data obtained, a non-random distribution of Ca2+ and Pb2+ ions on different A-sites as a function of their concentration in different systems was concluded. Various temperature-stable microwave dielectrics, based on the above three systems, have been synthesized and shown to exhibit excellent MW properties.
    Vir: Journal of the European ceramic society. - ISSN 0955-2219 (Vol. 21, 2001, str. 2723-2730)
    Vrsta gradiva - članek, sestavni del
    Leto - 2001
    Jezik - angleški
    COBISS.SI-ID - 16306215

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