Nano-laminate-based ignitors

• US 20040060625A1
• Filed: 10/01/2002
• Published: 04/01/2004
• Est. Priority Date: 10/01/2002
• Status: Active Grant

• Current Assignee: Lawrence Livermore National Security LLC (Government of the United States of America)
• Original Assignee: Regents of the University of California (University of California)
• Inventors: Simpson, Randall L., Satcher, Joe H. Jr., Gash, Alexander E., Barbee, Troy W. Jr.
• Granted Patent: US 7,951,247 B2
• Time in Patent Office: Days
• US Class Current: 149/15
• CPC Class Codes: C06B 33/00 Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide
• CPC Class Codes: C06B 45/14 a layer or zone containing an inorganic explosive or an inorganic explosive or an inorganic thermic component
• CPC Class Codes: C06C 9/00 Chemical contact igniters; Chemical lighters
• CPC Class Codes: Y10T 156/10 Methods of surface bonding and/or assembly therefor

Abstract

Sol-gel chemistry is used to prepare igniters comprising energetic multilayer structures coated with energetic booster materials. These igniters can be tailored to be stable to environmental aging, i.e., where the igniters are exposed to extremes of both hot and cold temperatures (−30 C to 150C) and both low (0%) and high relative humidity (100%).

Claims

1. A composition comprising:

an energetic multilayer structure coated with an energetic booster material.

2. The composition recited in claim 1, wherein said composition is ignitable by mechanical stimuli.

3. The composition recited in claim 1, wherein said composition is ignitable by electrical energy.

4. The composition recited in claim 1, wherein said composition is ignitable by a laser.

5. The composition recited in claim 1, wherein said composition has an area ranging from 10⁻

2 m² to 10² m².

6. The composition recited in claim 1, wherein said energetic booster material comprises an intimate mixture of at least one oxidizer(s) and at least one fuel(s), wherein (1) at least one of the critical dimensions (length, height, width) of at least one of the constituents is less than 100 nm and (2) at least one of the components of the energetic materials was derived via sol-gel methods.

7. The composition recited in claim 1, wherein said energetic booster material comprises at least one organic compound that is an energetic material.

8. The composition recited in claim 1, wherein said energetic booster material comprises at least one inorganic compound that is an energetic material.

9. The composition recited in claim 1, wherein said energetic booster material comprises at least one energetic material component that has one or more dimensions (length, width, or thickness) in the nanometer size range.

10. A method comprising:

coating an energetic multilayer structure with an energetic booster material.

11. The method recited in claim 11, wherein said coating is accomplished by dip-coating, spin-coating, spray-coating, chemical vapor deposition coating, physical vapor deposition coating, lamination, or gluing.