Energy dense explosives

• US 6,679,960 B2
• Filed: 04/25/2001
• Issued: 01/20/2004
• Est. Priority Date: 04/25/2001
• Status: Expired due to Fees

• Current Assignee: Lockheed Martin Corporation (Martin Marietta Corporation)
• Original Assignee: Lockheed Martin Corporation (Martin Marietta Corporation)
• Inventors: Jones, John W.
• Primary Examiner(s): HARDEE, JOHN R
• Application Number:
  US09/840,909
• Publication Number:
  US 20030015265A1
• Time in Patent Office: 1,000 Days
• Field of Search: 149/18, 149/19, 149/19.1, 149/19.3, 149/17
• US Class Current: 149/19.3
• CPC Class Codes: C06B 33/08 with a nitrated organic compound
• CPC Class Codes: C06B 45/00 Compositions or products which are defined by structure or arrangement of component of product explosive charges of particular form or shape F42B1/00, F42B3/00

Abstract

The present invention is directed to EDE (Energy Dense Explosives), wherein particles of a reducing metal and a metal oxide are dispersed throughout a conventional high explosive. When the resulting EDE is detonated, the reducing metal and the metal oxide combine in an exothermic redox reaction at a speed on the order of a detonation speed of the conventional explosive. The resulting formulation has higher mass per unit volume and energy per unit volume densities than the conventional high explosive alone. Sizes of the reducing metal particles and metal oxide particles and proximities of the particles to each other within the conventional explosive can be adjusted to tailor blast characteristics of a munition, for example to result in a time-pressure curve having a desired shape and duration.

Claims

1. A munitions payload comprising:

a primary explosive;

a metal oxide dispersed within the primary explosive; and

a reducing metal dispersed within the primary explosive, for reacting with the metal oxide;

wherein the payload does not contain abrasive components.

2. The payload of claim 1, wherein the metal oxide and the reducing metal are uniformly dispersed within the primary explosive.

3. The payload of claim 1, wherein the metal oxide and the reducing metal are non-uniformly dispersed within the primary explosive.

4. The munitions payload of claim 1, wherein an average density of the metal oxide and the reducing metal is at least about 5.0 grams per cubic centimeter.

5. The munitions payload of claim 1, wherein upon detonation of the primary explosive, a reaction between the metal oxide and the reducing metal occurs at a rate that is about the same as a rate of the detonation.

6. The payload of claim 5, wherein the detonation rate is on the order of 6 millimeters per microsecond.

7. The payload of claim 1 wherein upon detonation of the payload the metal oxide and the reducing metal completely react within 1 millisecond.

8. The payload of claim 1 wherein the payload further comprises a polymer binder for binding the primary explosive, metal oxide and reducing metal together.

9. The payload of claim 8, wherein the binder is a fluoropolymer.

10. The payload of claim 1 wherein the reducing metal is mechanically bonded to the metal oxide.

11. The payload of claim 10 wherein the mechanical bond is formed using boric oxide.

12. The payload of claim 10, wherein the reducing metal is adhered to the metal oxide using a vapor phase coating process.

13. The payload of claim 10, wherein the metal oxide is coated with the reducing metal via electroless plating.

14. The payload of claim 10, wherein the reducing metal and the metal oxide are in particle form, each particle comprising the reducing metal and the metal oxide.

15. The payload of claim 1 wherein each of the reducing metal and the metal oxide is in particle form.

16. The payload of claim 15, wherein the particles of reducing metal and the particles of metal oxide are greater than or equal to 1 micron and less than or equal to 10 microns across.

17. The payload of claim 15, wherein the particles of reducing metal and the particles of metal oxide are less than or equal to 1 micron across.

18. The payload of claim 15, wherein the particles of reducing metal and the particles of metal oxide are greater than or equal to 10 microns across.

19. The payload of claim 15, wherein sizes of the particles of reducing metal and the particles of the metal oxide are selected to tailor a peak detonation pressure of the payload.

20. The payload of claim 15, wherein sizes of the particles of reducing metal and the particles of the metal oxide are selected to tailor a time-pressure detonation impulse profile of the payload.

21. The payload of claim 1 wherein:

the reducing metal consists essentially of at least one of Aluminum, Zirconium, an alloy of Aluminum and Zirconium, and an intermetallic of Aluminum and Zirconium;

the metal oxide consists essentially of at least one of Tungsten Dioxide, Lead Monoxide, Tungsten 2.72 Oxide, Tungsten 2.90 Oxide, Nickel Monoxide, Tungsten Trioxide, Tennorite, Cuprite, and Manganese Dioxide.

22. A munitions payload comprising:

a primary explosive;

a metal oxide dispersed within the primary explosive; and

a reducing metal dispersed within the primary explosive, for reacting with the metal oxide;

wherein the metal oxide and the reducing metal are non-uniformly dispersed within the primary explosive.

23. A munitions payload comprising:

a primary explosive;

a metal oxide dispersed within the primary explosive; and

a reducing metal dispersed within the primary explosive, for reacting with the metal oxide;

wherein a mechanical bond is formed between the reducing metal and the metal oxide using boric oxide.

24. A munitions payload comprising:

a primary explosive;

a metal oxide dispersed within the primary explosive; and

a reducing metal dispersed within the primary explosive, for reacting with the metal oxide;

wherein the reducing metal is adhered to the metal oxide using a vapor phase coating process.

25. A munitions payload comprising:

a primary explosive;

a metal oxide dispersed within the primary explosive; and

a reducing metal dispersed within the primary explosive, for reacting with the metal oxide;

wherein the metal oxide is coated with the reducing metal via electroless plating.