ISSN:
1573-9066
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Conclusions 1. Measurements were made, using the method of mixtures, of the enthalpy and heat capacity of molybdenum disulfide in the temperature range 500–1700°K. The effect of temperature on the enthalpy and heat capacity of the compound investigated was determined. 2. On the basis of an analysis of the heat capacity of molybdenum disulfide in a wide temperature range, equations were derived for the temperature dependence of the heat capacity, enthalpy, and entropy of MoS2 at 0-1700°K. The equations consist of combinations of the Debye and Einstein functions, which reflect the harmonic vibrations of the crystal lattice of the disulfide at temperatures of up to 500°K, and anharmonic corrections, allowing for the nonharmonic vibrations of atoms set up in the MoS2 crystal lattice at high temperatures. 3. A table has been compiled of values recommended for practical application of the thermodynamic characteristics — enthalpy, heat capacity, entropy, and reduced isobaric-isothermal potential- of molybdenum disulfide for the temperature range 298–1700°K.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00796559
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