TY  - JOUR
AU  - V.S. Bilanych
AU  - M.I. Babilya
AU  - D.M. Korovska
AU  - V.I. Studenyak
AU  - I.O. Shender
AU  - A.I. Pogodin
AU  - I.P. Studenyak
AU  - M. Kranjčec
TI  - Mechanical properties of superionic ceramics based on (Cu1–xAgx)7GeSe5I solid solutions
T2  - Semiconductor Physics, Quantum Electronics & Optoelectronics
VL  - 24
IS  - 4
SP  - 372
EP  - 377
PY  - 2021
DO  - 10.15407/spqeo24.04.372
UR  - https://doi.org/10.15407/spqeo24.04.372
AB  - Cu1–xAgx)7GeSe5I-based ceramics were prepared by pressing and sintering from the micro- and nanopowders. The ceramic samples were investigated using microstructural analysis. The microhardness was measured applying the indentation method with use of the Vickers pyramid. It has been shown that the microhardness of (Cu1–xAgx)7GeSe5I-based ceramics decreases with copper content decrease at Cu+→Ag+cationic substitution. The compositional dependences and size effects of microhardness inherent to (Cu1–xAgx)7GeSe5I-based ceramics have been analyzed. The size effects of microindentation have been interpreted within the framework of the gradient theory of plasticity.
KW  - solid solution
KW  - superionic conductor
KW  - cationic substitution
KW  - ceramic
KW  - microhardness.
ER  -