Hydride based nano-structured energy dense energetic materials

• US 7,494,705 B1
• Filed: 01/15/2004
• Issued: 02/24/2009
• Est. Priority Date: 01/15/2003
• Status: Expired due to Fees

• Current Assignee: Lockheed Martin Corporation (Martin Marietta Corporation)
• Original Assignee: Lockheed Martin Corporation (Martin Marietta Corporation)
• Inventors: Jones, John, Sheridan, Edward W.
• Primary Examiner(s): Hendricks; Keith D
• Assistant Examiner(s): Savage; Jason L
• Application Number:
  US10/759,885
• Time in Patent Office: 1,867 Days
• Field of Search: None
• US Class Current: 428/336
• CPC Class Codes: C06B 45/12 having contiguous layers or zones
• CPC Class Codes: Y10T 428/12438 Composite
• CPC Class Codes: Y10T 428/12611 Oxide-containing component
• CPC Class Codes: Y10T 428/12771 Transition metal-base component
• CPC Class Codes: Y10T 428/265 1 mil or less

Abstract

An energy dense energetic material comprising a layer of material comprising one or more metals substantially not in oxide form and a layer of material comprising one or more metals substantially in oxide form, wherein the layers in combination are energetic and have a thickness of less than or equal to approximately 100 nm.

Claims

1. An energy dense energetic material comprising:

a layer of material comprising one or more metals substantially not in oxide form, comprising one or more compositions selected from the group consisting of metal hydrides and metals with interstitial hydrogen; and

a layer of material comprising one or more metals substantially in oxide form; and

wherein said layers in combination are energetic, reduce diffusion flux, and liberate a gaseous reaction product, and have a thickness of less than or equal to approximately 10 nm; and

wherein energetic fragments forming upon detonation comprise a material selected from the group consisting of elemental Mn and elemental P.

2. The material of claim 1 comprising a plurality of layers of material comprising one or more metals substantially not in oxide form.

3. The material of claim 2 comprising a plurality of layers of material comprising one or more metals substantially in oxide form.

4. The material of claim 3 wherein each layer of material comprising one or more metals substantially in oxide form is adjacent to at least one layer of material comprising one or more metals substantially not in oxide form.

5. The material of claim 1 comprising a plurality of layers of material comprising one or more metals substantially in oxide form.

6. The material of claim 1 wherein the layer of material comprising one or more metals substantially not in oxide form comprises one or more metals selected from the group consisting of Al, Ti, Li, and Mg.

7. The material of claim 1 wherein the layer of material comprising one or more metals substantially in oxide form comprises one or more metals selected from the group consisting of W, P, Fe, and Mn.

8. The material of claim 1 wherein the layer of material comprising one or more metals substantially not in oxide form comprises one or more metal hydrides.

9. The material of claim 1 wherein the layer of material comprising one or more metals substantially not in oxide form comprises one or more metals with interstitial hydrogen.

10. The material of claim 1 fabricated by plasma enhanced chemical vapor deposition.

11. The material of claim 1 adhered to a substrate selected from the group consisting of polymers, ceramics, glass, metals, and curved surfaces.

12. The material of claim 1 wherein said layers form an energetic material selected from the group consisting of TNT, RDX, Tritonal, and AFX-757.

13. An energy dense energetic material comprising:

a first layer of material, comprising one or more compositions selected from the group consisting of metal hydrides and metals with interstitial hydrogen;

a second layer of material, comprising one or more metals substantially in oxide form; and

wherein said first layer is disposed next to at least one said second layer and said first and second layers in combination are energetic and have a thickness of less than or equal to approximately 10 nm; and

wherein energetic fragments forming upon detonation comprise a material selected from the group consisting of elemental Mn and elemental P.

14. The material of claim 13 wherein said first layer of material comprises one or more metal hydrides.

15. The material of claim 13 wherein said first layer of material comprises one or more metals with interstitial hydrogen.

16. A method of making an energy dense energetic material, the method comprising the steps of:

depositing a layer of material comprising one or more metals substantially not in oxide form, comprising one or more compositions selected from the group consisting of metal hydrides and metals with interstitial hydrogen; and

depositing an adjacent layer of material comprising one or more metals substantially in oxide form; and

wherein said layers in combination are energetic, reduce diffusion flux, and liberate a gaseous reaction product, and have a thickness of less than or equal to approximately 10 nm; and

forming energetic fragments upon detonation comprising a material selected from the group consisting of elemental Mn and elemental P.