High pressure aspects of TiH/sub x//KClO/sub 4/ pyrotechnics

Conference · Wed Jan 01 00:00:00 EST 1986

OSTI ID:5329945

Munger, A C; Reed, J W

Actuators containing pyrotechnic materials are considered safe if, when actuated under normal conditions, no shrapnel is thrown about. There are, however, some abnormal and unlikely conditions under which these devices may not remain self-contained when installed in the next assembly. A condition can be envisioned that would require the actuator to fire and remain contained in its own volume. Such a condition has been called ''zero volume'' firing. Previous test data under different conditions had been construed to indicate that the maximum pressure reached in a zero volume case would be approx.100,000 psi (690 MPa). When the hardware was actually tested, pressures approaching the predicted values were obtained. In response to that finding, new hardware and test techniques were developed. overall, the results of these calculations and actual tests done from them were in reasonable agreement, and the pressures were much higher than anticipated. Numerical methods were then employed to predict PVT properties of the pyrotechnic systems in the zero volume situations, where the pyrotechnic material completely fills the available volume at the prevailing packing density. Two major computational problems arise: first, the handling of nonideal gas and condensed phase conditions; and second, heat loss and its estimation. Only the nonideal problem is considered in this work. 4 refs., 12 figs.

• Research Organization: Monsanto Research Corp., Miamisburg, OH (USA). Mound
• DOE Contract Number: AC04-76DP00053
• OSTI ID: 5329945
• Report Number(s): MLM-3378(OP); CONF-860739-15; ON: DE86014703
• Resource Relation: Conference: 11. international pyrotechnics seminar, Vail, CO, USA, 7 Jul 1986; Other Information: Portions of this document are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
ACTUATORS
DESIGN
TESTING
PYROTECHNIC DEVICES
EXPERIMENTAL DATA
MIXTURES
POTASSIUM PERCHLORATES
PRESSURE EFFECTS
TITANIUM HYDRIDES
VERY HIGH PRESSURE
ALKALI METAL COMPOUNDS
CHLORINE COMPOUNDS
DATA
DISPERSIONS
HALOGEN COMPOUNDS
HYDRIDES
HYDROGEN COMPOUNDS
INFORMATION
NUMERICAL DATA
OXYGEN COMPOUNDS
PERCHLORATES
POTASSIUM COMPOUNDS
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
450100* - Military Technology
Weaponry
& National Defense- Chemical Explosions & Explosives