Caloric properties of the Mg2Ca intermetallic alloy in solid and liquid states
R.N. Abdullaev, A.R. Khairulin, A.Sh. Agazhanov
Kutateladze Institute of Thermophysics SB RAS, Novosibirsk, Russia
Keywords: drop calorimetry, MgCa intermetallic alloy, enthalpy, heat capacity
Abstract
The enthalpy and heat capacity of solid and liquid Mg2Ca intermetallic alloy were measured with the help of mixing 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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