Equation of state of aluminum nitride and its shock response

Abstract
Equation of state of aluminum nitride (AlN) is determined from the ultrasonic wave velocity measurements of longitudinal and shear modes to 0.7 GPa. The equation of state obtained from the ultrasonic data is used in conjunction with the shock Hugoniot data on AlN to estimate its strength under plane shock wave compression. Further, a better understanding of the existing shock Hugoniot data above its transition stress from wurtzite to rock salt structure is realized through a comparison with the static high‐pressure investigations pertaining to this phase transition in AlN.