Open AccessStructure and Electrical Properties of Superionic Ceramics Based on Silver-Enriched (Cu0.25Ag0.75)7SiS5I Solid Solution
Author(s) -
А.І. Погодін,
Iryna Shender,
S.M. Bereznyuk,
M.J. Filep,
О.П. Кохан,
Л. М. Сусліков,
I.P. Studenyak
Publication year - 2021
Publication title -
ukrainian journal of physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.213
H-Index - 17
eISSN - 2071-0194
pISSN - 2071-0186
DOI - 10.15407/ujpe66.6.489
Subject(s) - materials science , ceramic , ionic conductivity , ionic bonding , electrical resistivity and conductivity , solid solution , electrical impedance , analytical chemistry (journal) , fast ion conductor , atmospheric temperature range , conductivity , ion , thermodynamics , composite material , chemistry , metallurgy , electrode , electrical engineering , chromatography , physics , organic chemistry , electrolyte , engineering
(Cu0.25Ag0.75)7SiS5I-based superionic ceramics were fabricated by using the micro- and nanopowders. The XRD technique and microstructural analysis are applied for the structural studies of powders and ceramic samples. The impedance measurements of ceramic samples are carried out in the frequency range from 10Hz to 2 × 106 Hz and temperature interval from 292 K to 383 K. The contributions of ionic and electronic conductivities into the total electrical conductivity are determined, and their temperature dependences are investigated. The influence of the size effect on ionic and electronic conductivities and their activation energies in (Cu0.25Ag0.75)7SiS5I-based ceramics is studied.