The Effect of Isovalent Cation Substitution on Mechanical Properties of (CuxAg1–x)7SiS5I Superionic Mixed Single Crystals


  • V. S. Bilanych Uzhhorod National University
  • K. V. Skubenych Uzhhorod National University
  • M. I. Babilya Uzhhorod National University
  • A. I. Pogodin Uzhhorod National University
  • I. P. Studenyak Uzhhorod National University



mixed crystals, mechanical properties, cation substitution, microhardness, compositional dependence


(CuxAg1−x)7SiS5I mixed crystals were grown by the Bridgman–Stockbarger method. The microhardness measurements are carried out at room temperature using a Vickers indenter. The compositional dependence of the microhardness is studied. The dependence of the microhardness on the depth of imprint is analyzed in the model of geometrically necessary dislocations. The indentation size effect is observed. It is established that the microhardness of (CuxAg1−x)7SiS5I mixed crystals decreases at the substitution of Cu atoms by Ag atoms.


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How to Cite

Bilanych, V. S., Skubenych, K. V., Babilya, M. I., Pogodin, A. I., & Studenyak, I. P. (2020). The Effect of Isovalent Cation Substitution on Mechanical Properties of (CuxAg1–x)7SiS5I Superionic Mixed Single Crystals. Ukrainian Journal of Physics, 65(5), 453.



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