Limited-life cartridge primers
Abstract
A cartridge primer which utilizes an explosive that can be designed to become inactive in a predetermined period of time: a limited-life primer. The explosive or combustible material of the primer is an inorganic reactive multilayer (RML). The reaction products of the RML are sub-micron grains of non-corrosive inorganic compounds that would have no harmful effects on firearms or cartridge cases. Unlike use of primers containing lead components, primers utilizing RML's would not present a hazard to the environment. The sensitivity of an RML is determined by the physical structure and the stored interfacial energy. The sensitivity lowers with time due to a decrease in interfacial energy resulting from interdiffusion of the elemental layers. Time-dependent interdiffusion is predictable, thereby enabling the functional lifetime of an RML primer to be predetermined by the initial thickness and materials selection of the reacting layers.
- Inventors:
- Issue Date:
- Research Org.:
- Univ. of California, Oakland, CA (United States); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1175322
- Patent Number(s):
- 6881284
- Application Number:
- 10/032,758
- Assignee:
- The Regents of the University of California (Oakland, CA)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C06 - EXPLOSIVES C06B - EXPLOSIVES OR THERMIC COMPOSITIONS
C - CHEMISTRY C06 - EXPLOSIVES C06C - DETONATING OR PRIMING DEVICES
- DOE Contract Number:
- W-7405-ENG-48
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
Citation Formats
Makowiecki, Daniel M., and Rosen, Robert S. Limited-life cartridge primers. United States: N. p., 2005.
Web.
Makowiecki, Daniel M., & Rosen, Robert S. Limited-life cartridge primers. United States.
Makowiecki, Daniel M., and Rosen, Robert S. Tue .
"Limited-life cartridge primers". United States. https://www.osti.gov/servlets/purl/1175322.
@article{osti_1175322,
title = {Limited-life cartridge primers},
author = {Makowiecki, Daniel M. and Rosen, Robert S.},
abstractNote = {A cartridge primer which utilizes an explosive that can be designed to become inactive in a predetermined period of time: a limited-life primer. The explosive or combustible material of the primer is an inorganic reactive multilayer (RML). The reaction products of the RML are sub-micron grains of non-corrosive inorganic compounds that would have no harmful effects on firearms or cartridge cases. Unlike use of primers containing lead components, primers utilizing RML's would not present a hazard to the environment. The sensitivity of an RML is determined by the physical structure and the stored interfacial energy. The sensitivity lowers with time due to a decrease in interfacial energy resulting from interdiffusion of the elemental layers. Time-dependent interdiffusion is predictable, thereby enabling the functional lifetime of an RML primer to be predetermined by the initial thickness and materials selection of the reacting layers.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Apr 19 00:00:00 EDT 2005},
month = {Tue Apr 19 00:00:00 EDT 2005}
}