Caloric properties of the Mg2Ca intermetallic compound in solid and liquid states

IF 0.5 4区 工程技术 Q4 ENGINEERING, AEROSPACE Thermophysics and Aeromechanics Pub Date : 2023-10-23 DOI:10.1134/S0869864323030137
R. N. Abdullaev, A. R. Khairulin, A. Sh. Agazhanov
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Abstract

The enthalpy and heat capacity of solid and liquid Mg2Ca intermetallic alloy were measured by massive high-temperature isothermal drop calorimeter over the temperature range of 298.15–1177 K. The estimated errors in the data on enthalpy and heat capacity were 0.2 % and 2 %, respectively. The fusion enthalpy of the Mg2Ca intermetallic alloy was determined to be 483 ± 3 J/g. The heat capacity of the Mg2Ca melt was shown to be constant in the range of 993.2–1177 K. A comparison of the obtained results with literature data has been carried out.

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Mg2Ca金属间化合物在固态和液态下的热性能
在298.15–1177 K的温度范围内,用大型高温等温液滴量热计测量了固体和液体Mg2Ca金属间合金的焓和热容。焓和热容数据的估计误差分别为0.2%和2%。Mg2Ca金属间合金的熔化焓为483±3J/g。Mg2Ca熔体的热容在993.2–1177 K范围内是恒定的。将获得的结果与文献数据进行了比较。
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来源期刊
Thermophysics and Aeromechanics
Thermophysics and Aeromechanics THERMODYNAMICS-MECHANICS
CiteScore
0.90
自引率
40.00%
发文量
29
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.
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