Equation of State of Hafnium at High Pressures in Shock Waves
K. V. Khishchenko
Abstract
Abstract The thermodynamic properties of hafnium under the high pressures obtained behind the shock wave front are described. A simple model in the form of a dependence of pressure on the specific volume and specific internal energy is proposed. The thermodynamic characteristics of the body-centered cubic (bcc) solid phase and melt of hafnium under high shock-compression pressures are calculated. The calculation results are compared with the available data of shock-wave experiments. The resulting equation of state of hafnium can be used in numerical simulation of the processes occurring at high pressures in shock waves.
Topics & Concepts
HafniumShock waveShock (circulatory)Equation of stateMaterials scienceShock frontVolume (thermodynamics)High pressurePhase (matter)MechanicsCompression (physics)ThermodynamicsPhysicsMetallurgyZirconiumComposite materialMedicineInternal medicineQuantum mechanicsHigh-pressure geophysics and materialsEnergetic Materials and CombustionBoron and Carbon Nanomaterials Research