Thermophysical properties of single crystals and ceramics based on thallium and silver halides

被引：0
|
作者：
Yuzhakov, Ivan [1 ]
Salimgareev, Dmitrii [1 ]
Lvov, Alexander [1 ]
Shmygalev, Alexander [2 ]
Rudenko, Alexei [2 ]
Yuzhakova, Anastasia [1 ]
Zhukova, Liya [1 ]
机构：
[1] Ural Fed Univ, Ekaterinburg 620002, Russia
[2] Russian Acad Sci, Inst High Temp Electrochem, Ural Branch, Ekaterinburg 620066, Russia
来源：
MATERIALIA | 2025年 / 39卷
关键词：
Ionic conductivity; Heat capacity; Thermal conductivity; Single crystals; Optical ceramics; Thermophysical properties; CONDUCTIVITY; AGI; DIFFUSIVITY;
D O I：
10.1016/j.mtla.2024.102326
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Temperature dependences of electrical conductivity, heat capacity and heat diffusivity in the range of 30-250 degrees C were studied for single crystals and optical ceramics based on metal halides of the TlBr0.46I0.54 - AgI, TlCl0.74Br0.26 - AgI, TlBr0.46I0.54 - AgCl0.25Br0.75, TlCl0.74Br0.26 - AgCl0.25Br0.75 systems. The properties of superionic conductors were discovered in materials with ionic bonds Ag - I, Tl - I with the strongest characteristics in the TlBr0.46I0.54 - AgCl0.25Br0.75 system's compounds. The influence of dissimilar ions number and their proportion in the crystal lattice was revealed by calculating the diffusion coefficients of silver and analyzing the conductivity curves. Heat capacity and thermal conductivity coefficients showed the least susceptibility to the temperature influence in solid solutions with a large number of dissimilar elements TlBr0.46I0.54 - AgCl0.25Br0.75, TlCl0.74Br0.26 - AgCl0.25Br0.75. The obtained dependencies determine the areas of materials application and allow predicting the technological modes of their processing.
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页数：8
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