Thermal Conductivity of Cesium Bismuthides in the Liquid State

A. Sh. Agazhanov; Агажанов А. Ш.; R. N. Abdullaev; Абдуллаев Р. Н.; A. R. Khairulin; Хайрулин А. Р.; S. V. Stankus; Станкус С. В.

doi:10.31857/S004445372311002X

Thermal Conductivity of Cesium Bismuthides in the Liquid State

Авторлар: Agazhanov A.¹, Abdullaev R.¹, Khairulin A.¹, Stankus S.¹
Мекемелер:
1. Kutateladze Institute of Thermophysics, Siberian Branch, Russian Academy of Sciences
Шығарылым: Том 97, № 11 (2023)
Беттер: 1537-1542
Бөлім: ХИМИЧЕСКАЯ ТЕРМОДИНАМИКА И ТЕРМОХИМИЯ
URL: https://journals.rcsi.science/0044-4537/article/view/233043
DOI: https://doi.org/10.31857/S004445372311002X
EDN: https://elibrary.ru/PBRFDG
ID: 233043

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Аннотация
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Әдебиет тізімі
Қосымша файлдар
Статистика

Аннотация

The thermal conductivity of liquid alloys of the cesium–bismuth system with 20–66 at % Bi in the temperature range from the liquidus line to 1173 K has been studied experimentally with an error of 4–6%. It was found that the thermal conductivity of liquid cesium bismuthides for the indicated compositions and temperatures takes low values from 0.7 to 4.5 W/(m K) typical for liquid salts. The thermal diffusivity and Lorenz number were calculated from the results of thermal conductivity measurements. An analysis of the temperature and concentration dependences of the studied properties indirectly confirms current views on the presence of ordered structures called ionic complexes in alkali metal bismuthide melts, which significantly affect the thermophysical properties of melts and are destroyed at elevated temperatures.

Негізгі сөздер

liquid Cs–Bi alloys, thermal conductivity, thermal diffusivity, Lorenz number, ionic complexes, laser flash method

Әдебиет тізімі

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