Burning rates of two cast nitramine explosives using a hybrid closed bomb-strand burner
The burn rate of two HMX-based cast explosives, RX-08-EL and RX-40-AP, is measured to pressures above 650 MPa using a hybrid closed bomb-strand burner. The hybrid design allows the simultaneous measurement of pressure and regression rate, in each experiment, over a large range of pressures. RX-08-EL is a high performance extrusion cast explosive with low sensitivity, and RX-40-AP is a cast-cured explosive with a mono-modal HMX particle size distribution. Up to 650 MPa, both explosives exhibit a planar burning mechanism with the regression rate obeying the classical aP{sup n} formalism. Upon cycling to 400 MPa, unloading, and re-pressurizing, the RX-08-EL explosive exhibited a significant increase (an order of magnitude) in its burn rate.
- Research Organization:
- Lawrence Livermore National Lab., CA (USA)
- Sponsoring Organization:
- DOE/DP
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 5368596
- Report Number(s):
- UCRL-101879; CONF-890926--3; ON: DE90002785
- Country of Publication:
- United States
- Language:
- English
Similar Records
Compression of two extrusion-cast explosives to 500 MPa. [RX-08-FO and RX-08-EL]
HE formulation. Period covered: July--September 1973
Related Subjects
450100* -- Military Technology
Weaponry
& National Defense-- Chemical Explosions & Explosives
CHEMICAL EXPLOSIVES
CHEMICAL REACTIONS
COMBUSTION
EXPLOSIVES
KINETICS
NITRO COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXIDATION
PARTICLE SIZE
PRESSURE EFFECTS
REACTION KINETICS
SIZE
THERMOCHEMICAL PROCESSES