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The thermal expansion of 2<i>H</i>-MoS<sub>2</sub>, 2<i>H</i>-MoSe<sub>2</sub>and 2<i>H</i>-WSe<sub>2</sub>between 20 and 800°C
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1976
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EngineeringChemistryThermal EnergyQuantum MaterialsHexagonal Cell DimensionsThermal AnalysisThermophysicsThermodynamicsMaterials ScienceInorganic ChemistryTemperature Range 20PhysicsThermal TransportPhysical ChemistryHeat TransferLayered MaterialTransition Metal ChalcogenidesHigh Temperature MaterialsNatural SciencesApplied PhysicsCondensed Matter PhysicsThermal EngineeringChemical ThermodynamicsThermal PropertyThermal Expansion
The hexagonal cell dimensions a and c of 2H-MoS2, 2H-MoSe2 and 2H-WSe2 have been measured over the temperature range 20 to 800 °C. In all three compounds a and c increased non-linearly with temperature, the linear thermal expansion coefficient of c being greater than that of a. Above 500°C the compounds begin to decompose in vacuum.