Density and thermal expansion of LiK3Pb4 liquid alloy

IF 0.5 4区工程技术 Q4 ENGINEERING, AEROSPACE

Thermophysics and Aeromechanics Pub Date : 2025-03-12 DOI:10.1134/S0869864324040036

A. Sh. Agazhanov, R. A. Khairulin, R. N. Abdullaev, S. V. Stankus

引用次数: 0

Abstract

A density and a volumetric thermal expansion coefficient of the LiK₃Pb₄ ternary alloy (12.5 at. % Li, 37.5 at. % K, and 50.0 at. % Pb) in the liquid state are measured for the first time. Volumetric properties are studied using a gamma-ray attenuation technique in the range from the liquidus temperature T_L = 812 K to 990 K. The LiK₃Pb₄ solid alloy is known to be an intermetallic compound. Its thermal analysis at cooling from the liquid state carried out in this work has shown that the compound is likely formed by a peritectic reaction at 789 K. Based on the experimental results obtained, a table of recommended values for the volumetric properties of the LiK₃Pb₄ melt has been developed in the studied temperature range.

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液态合金LiK3Pb4的密度与热膨胀

LiK3Pb4三元合金的密度和体积热膨胀系数（12.5 at）。Li, 37.5 at。% K, 50.0% at。% Pb)在液体状态下首次被测量。在液相温度TL = 812 K至990 K范围内，利用伽马射线衰减技术研究了其体积特性。LiK3Pb4固体合金是一种金属间化合物。从液态冷却时的热分析表明，该化合物可能是在789 K时由包晶反应形成的。根据实验结果，给出了在研究温度范围内LiK3Pb4熔体体积性能的推荐值表。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Thermophysics and Aeromechanics THERMODYNAMICS-MECHANICS

CiteScore

0.90

自引率

40.00%

发文量

审稿时长

>12 weeks

期刊介绍： The journal Thermophysics and Aeromechanics publishes original reports, reviews, and discussions on the following topics: hydrogasdynamics, heat and mass transfer, turbulence, means and methods of aero- and thermophysical experiment, physics of low-temperature plasma, and physical and technical problems of energetics. These topics are the prior fields of investigation at the Institute of Thermophysics and the Institute of Theoretical and Applied Mechanics of the Siberian Branch of the Russian Academy of Sciences (SB RAS), which are the founders of the journal along with SB RAS. This publication promotes an exchange of information between the researchers of Russia and the international scientific community.