Abstract
The stability of strong shock waves in metals with respect to spontaneous emission of acoustic and entropy-vortex waves is investigated theoretically. The analysis employs the empirical Hugoniot adiabatic (HA) which is commonly represented as a straight line in the plane (U,D) where U is the particle velocity behind the shock and D is the shock velocity. The criterion for spontaneous emission depends on the sound velocity in a shock-compressed medium which is determined from the three-term equation of state. The latter takes into account contributions of atoms and electrons to the total pressure. The atomic Gruneisen parameter and the cold elastic pressure are calculated from a system of coupled differential equations which is based on the empirical HA and the Slater–Landau approach. It has been found that spontaneous emission may occur in metals with relatively low values of the Hugoniot adiabatic slope S=dD/dU such as molybdenum and tantalum.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
