Abstract
Microstructure, transport, and thermal properties of the composites of (1 − x)CsH2PO4/xSrZrO3 (x = 0.01–0.2) are studied. Introduction of highly dispersed strontium zirconate results in an increase in low-temperature conductivity by 1–3 orders of magnitude as depedent on the composition, leveling, and disappearance of a superionic phase transition in CsH2PO4. The methods of differential scanning calorimetry and thermogravimetry were used to show that a significant change in thermodynamic properties of CsH2PO4 in composites at x = 0.1–0.2 is observed due to salt amorphization. According to the data of X-ray phase analysis, there is no chemical interaction between the components and no new compounds are formed. An increase in conductivity is caused by salt disordering due to the interphase surface interaction.
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