This article is cited in 13 papers

Thermophysical Properties of Materials

The simulation of transformation of graphite to diamond under conditions of dynamic compression in a conic target

I. V. Lomonosov^a, V. E. Fortov^a, A. A. Frolova^b, K. V. Khishchenko^a, A. A. Charakhch'yan^b, L. V. Shurshalov<sup>b

a</sup> Institute of Extremal States Thermophysics, Scientific Association for High Temperatures, Russian Academy of Sciences, Moscow
^b Dorodnitsyn Computing Centre of the Russian Academy of Sciences, Moscow

Abstract: Some results are given of numerical simulation of carbon loading in conic lead targets using aluminum impactors moving at a velocity of $4$ km/s. Semiempirical wide-range equations of state for materials and a kinetic model of nonequlibrium transformation of graphite to diamond, calibrated against the available experimental data, are used in the calculations. The cumulative effect on the target axis of symmetry is investigated, as well as the effect of the sample unloading after the arrival of the release wave from the rear surface of the impactor.

UDC: 536.20

Received: 28.11.2002

 English version: High Temperature, 2003, 41:4, 447–458