A Comparative Study of Very High Burning Rate Materials - HIVELITE compositions 300511 and 300435
Abstract
A series of safety and characterization tests were performed on a very high burning rate (VHBR) HIVELITE 300511 composition (Teledyne McCormick Selph product) in order to provide sufficient data so that a judgment can be made to qualify the material for in-service use. This composition is claimed to be less sensitive to electrostatics than HIVELITE 300435, a similar composition. The results of HIVELITE 300511 are compared to those for HIVELITE 300435. The range of tests include impact sensitivity, electrostatic sensitivity, friction sensitivity, autoignition, explosion temperature, coefficient of thermal expansion, effect of moisture, growth effects, burn rate tests and closed bomb results. Similar results were obtained with perforated and solid pellets in the modified version of the TMcS standard primer acceptance test to determine the burn rate measurement in open air. However, different results were obtained with larger diameters of solid pellets. The burning progression rates reduced drastically for solid pellets that were coated with hot black asphalt paint to inhibit the surface burning. A significant difference was also noted in the closed bomb testing when compared to the TMcS data. On an overall basis, HIVELITE 300511 is not as sensitive to impact, friction, and electrostatics as HIVELITE 300435. Although the sensitivity to electrostatics has been reduced by a factor of almost 10 for HIVELITE 300511, the material still must be handled as a primary explosive. Sufficient data has been obtained to evaluate HIVELITE 300511 for interim qualification for in-service use.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1982
- Accession Number
- ADA119403
Entities
People
- D. B. Anderson
- D. Downs
- L. Avrami
- R. Velicky
Organizations
- United States Army Armament Research, Development and Engineering Center