Kinetics of Solid Phase Reactions at High Pressure and Temperature

Zaug, J M ; Farber, D L ; Saw, C K ; Weeks, B L

Lawrence Livermore National Laboratory

关键词: Pressure Dependence;    Chemical Explosives;    37 Inorganic, Organic, Physical And Analytical Chemistry;    Molecular Crystals;    Chemical Reaction Kinetics;   

DOI  :  10.2172/15005320
RP-ID  :  UCRL-ID-147389
RP-ID  :  W-7405-ENG-48
RP-ID  :  15005320

美国|英语

来源: UNT Digital Library

【 摘 要 】

We report on the subject of temperature and/or pressure induced solid-solid phase transitions of energetic molecular crystals. Over the last three years we have applied experimental techniques that when used simultaneously provide insight into some of the complexities that govern reaction rate processes. After more than 55 years of study a global kinetics model describing the P-T phase space transition kinetics of such materials as HMX (octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine) is not only missing, but from a formal perspective is perhaps as many years away from completion. The essence of this report describes what material parameters affect first-order reaction rates of the CHNO moiety of molecular crystals and introduces the application of new experimental tools thus permitting quantifiable studies of important rate limiting mechanisms.