Particle size reduction of propellants by cryocycling
Abstract
Repeated exposure of a propellant to liquid nitrogen causes thermal stress gradients within the material resulting in cracking and particle size reduction. This process is termed cryocycling. The authors conducted a feasibility study, combining experiments on both inert and live propellants with three modeling approaches. These models provided optimized cycle times, predicted ultimate particle size, and allowed crack behavior to be explored. Process safety evaluations conducted separately indicated that cryocycling does not increase the sensitivity of the propellants examined. The results of this study suggest that cryocycling is a promising technology for the demilitarization of tactical rocket motors.
- Authors:
-
- and others
- Publication Date:
- Research Org.:
- Sandia National Lab. (SNL-CA), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE, Washington, DC (United States)
- OSTI Identifier:
- 86989
- Report Number(s):
- SAND-95-8227
ON: DE95015266; TRN: AHC29521%%45
- DOE Contract Number:
- AC04-94AL85000
- Resource Type:
- Technical Report
- Resource Relation:
- Other Information: PBD: May 1995
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE; PROPELLANTS; COMMINUTION; WEAPONS; DECOMMISSIONING; CRYOGENIC FLUIDS; THERMAL STRESSES; ORDNANCE; THERMAL CYCLING; FREEZING; WASTE PROCESSING; MATHEMATICAL MODELS; MECHANICAL PROPERTIES; SAFETY; EXPERIMENTAL DATA
Citation Formats
Whinnery, L, Griffiths, S, and Lipkin, J. Particle size reduction of propellants by cryocycling. United States: N. p., 1995.
Web. doi:10.2172/86989.
Whinnery, L, Griffiths, S, & Lipkin, J. Particle size reduction of propellants by cryocycling. United States. https://doi.org/10.2172/86989
Whinnery, L, Griffiths, S, and Lipkin, J. 1995.
"Particle size reduction of propellants by cryocycling". United States. https://doi.org/10.2172/86989. https://www.osti.gov/servlets/purl/86989.
@article{osti_86989,
title = {Particle size reduction of propellants by cryocycling},
author = {Whinnery, L and Griffiths, S and Lipkin, J},
abstractNote = {Repeated exposure of a propellant to liquid nitrogen causes thermal stress gradients within the material resulting in cracking and particle size reduction. This process is termed cryocycling. The authors conducted a feasibility study, combining experiments on both inert and live propellants with three modeling approaches. These models provided optimized cycle times, predicted ultimate particle size, and allowed crack behavior to be explored. Process safety evaluations conducted separately indicated that cryocycling does not increase the sensitivity of the propellants examined. The results of this study suggest that cryocycling is a promising technology for the demilitarization of tactical rocket motors.},
doi = {10.2172/86989},
url = {https://www.osti.gov/biblio/86989},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon May 01 00:00:00 EDT 1995},
month = {Mon May 01 00:00:00 EDT 1995}
}
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