Multifunctional reactive inks, methods of use and manufacture thereof

Patent metadata

Field	Value
Publication number	US-12215236-B2
Application number	US-202217691006-A
Country	US
Kind code	B2
Filing date	Mar 9, 2022
Priority date	Oct 8, 2013
Publication date	Feb 4, 2025
Grant date	Feb 4, 2025

Abstract

In one embodiment, a method includes dispersing a plurality of particles in a solution to form a dispersion; and adding a stabilizing agent to the dispersion in an amount sufficient to cause the dispersion to exhibit one or more predetermined rheological properties, wherein the particles are characterized by a core-shell configuration, wherein the core-shell configuration includes a core formed from a first material and a shell formed from a second material, wherein the first material and the second material form a combustible composition and/or a reactive binary composition that is configured to complete a self-propagating reaction and/or a self-sustaining reaction upon initiation thereof. Corresponding materials, and methods of using such materials, are also disclosed.

First claim

What is claimed is:

1. A composition of matter, comprising:
a plurality of particles in a dispersion;
wherein the particles are characterized by a core-shell configuration;
wherein the core-shell configuration includes a core formed from a first material and a shell formed from a second material;
wherein the first material and the second material form a combustible composition and/or a reactive binary composition that is configured to complete a self-propagating reaction and/or a self-sustaining reaction upon initiation thereof; and
wherein the composition of matter exhibits one or more predetermined rheological properties that include being structurally self-supporting during deposition of the composition of matter onto a substrate and prior to initiation of the self-propagating reaction and/or the self-sustaining reaction.

2. The composition of matter as recited in claim 1 , wherein the particles are characterized by an average diameter in a range from about 0.01 microns to about 100 microns.

3. The composition of matter as recited in claim 1 , wherein the dispersion further comprises one or more stabilizing agents, and wherein the one or more stabilizing agents include one or more components selected from the group consisting of: at least one polymer, at least one surfactant, at least one acid, at least one base, at least one electrolyte and/or at least one polyelectrolyte, and at least one salt.

4. The composition of matter as recited in claim 1 , wherein the dispersion further comprises one or more stabilizing agents, wherein the one or more stabilizing agents include at least one polymer, and wherein the at least one polymer is selected from the group consisting of: polyvinylpyrrolidone (PVP), polyacrylic acid, polyethyleneimine, and ammonium polymethacrylate.

5. The composition of matter as recited in claim 1 , further comprising at least one additional component selected from the group consisting of: a humectant, a graded volatility solvent system, a brazing agent, and a gelation agent.

6. The composition of matter as recited in claim 1 , wherein either:
the first material comprises one or more constituents selected from the group consisting of: aluminum, boron, barium, beryllium, bismuth, carbon, calcium, cerium, chromium, copper, iron, germanium, hafnium, lanthanum, lithium, magnesium, manganese, molybdenum, sodium, niobium, palladium, plutonium, sulfur, silicon, tantalum, thorium, uranium, yttrium, zinc, and zirconium, and combinations thereof, and the second material comprises one or more constituents selected from the group consisting of silver oxides, boron, boron oxides, bismuth, bismuth oxides, carbon, calcium, cerium, cobalt, cobalt oxides, chromium, chromium oxides, copper, copper oxides, iron, iron oxides, hafnium, mercury oxides, iodine oxides, potassium, lanthanum, lithium, magnesium, manganese, manganese oxides, molybdenum, molybdenum oxides, sodium, niobium, niobium oxides, nickel, nickel oxides, lead, lead oxides, palladium, palladium oxides, praseodymium, platinum, plutonium, sulfur, antimony, selenium, silicon, silicon oxides, samarium, tin, tin oxides, strontium, tantalum, tantalum oxides, tellurium, thorium, titanium, titanium oxides, uranium, uranium oxides vanadium, vanadium oxides, tungsten, tungsten oxides, yttrium, zinc, zirconium, and combinations thereof; or
the first material comprises one or more constituents selected from the group consisting of: silver oxides, boron, boron oxides, bismuth, bismuth oxides, carbon, calcium, cerium, cobalt, cobalt oxides, chromium, chromium oxides, copper, copper oxides, iron, iron oxides, hafnium, mercury oxides, iodine oxides, potassium, lanthanum, lithium, magnesium, manganese, manganese oxides, molybdenum, molybdenum oxides, sodium, niobium, niobium oxides, nickel, nickel oxides, lead, lead oxides, palladium, palladium oxides, praseodymium, platinum, plutonium, sulfur, antimony, selenium, silicon, silicon oxides, samarium, tin, tin oxides, strontium, tantalum, tantalum oxides, tellurium, thorium, titanium, titanium oxides, uranium, uranium oxides vanadium, vanadium oxides, tungsten, tungsten oxides, yttrium, zinc, zirconium, and combinations thereof; and the second material comprises one or more constituents selected from the group consisting of: aluminum, boron, barium, beryllium, bismuth, carbon, calcium, cerium, chromium, copper, iron, germanium, hafnium, lanthanum, lithium, magnesium, manganese, molybdenum, sodium, niobium, palladium, plutonium, sulfur, silicon, tantalum, thorium, uranium, yttrium, zinc, and zirconium, and combinations thereof; and
wherein the first material and the second material collectively exclude combinations of:
aluminum and iron oxides;
aluminum and silicon oxides;
aluminum and chromium oxides;
aluminum and bismuth oxides;
aluminum and manganese oxides; and
aluminum and bismuth oxides.

7. A method for forming a composition of matter as recited in claim 1 , the method comprising:
dispersing the plurality of particles in a solution to form the dispersion.

8. The method as recited in claim 7 , wherein the particles comprise from about 30 vol % to about 80 vol % of the dispersion.

9. The method as recited in claim 7 , wherein the dispersion comprises the particles dispersed throughout a liquid metal matrix.

10. The method as recited in claim 7 , wherein the particles are characterized by an average diameter in a range from about 0.01 microns to about 100 microns.

11. The method as recited in claim 7 , wherein the solution comprises a stabilizing agent including one or more components selected from the group consisting of: at least one polymer, at least one surfactant, at least one acid, at least one base, at least one electrolyte and/or at least one polyelectrolyte, and at least one salt.

12. The method as recited in claim 7 , wherein the solution comprises a stabilizing agent including at least one polymer, and wherein the at least one polymer is selected from the group consisting of: polyvinylpyrrolidone (PVP), polyacrylic acid, polyethyleneimine, and ammonium polymethacrylate.

13. The method as recited in claim 7 , further comprising adding at least one additional component to the dispersion, wherein the at least one additional component is selected from the group consisting of: a humectant, a graded volatility solvent system, a brazing agent, and a gelation agent.

14. A method of utilizing the composition of matter as recited in claim 1 , the method comprising:
depositing the composition of matter on a substrate.

15. The method as recited in claim 14 , wherein the self-propagating reaction and/or the self-sustaining reaction renders at least surface(s) of the substrate onto which the composition of matter is deposited conductive.

16. The method as recited in claim 14 , wherein the self-propagating reaction and/or the self-sustaining reaction comprises a thermite reaction and/or an intermetallic reaction.

17. The method as recited in claim 14 , further comprising initiating the self-propagating reaction and/or the self-sustaining reaction.

18. The method as recited in claim 14 , wherein the composition of matter is deposited as a first layer, the method further comprising: depositing one or more additional layers of the composition of matter above the first layer.

19. The method as recited in claim 18 , further comprising initiating the self-propagating reaction and/or the self-sustaining reaction in each of the one or more additional layers subsequent to depositing the one or more additional layers and prior to depositing a su

Assignees

• L Livermore Nat Security Llc

Inventors

• Sullivan Kyle
• Densmore John M
• Duoss Eric
• Gash Alexander E
• Kuntz Joshua
• Vericella John

Classifications

• B29C64/118

  using filamentary material being melted, e.g. fused deposition modelling [FDM] · CPC title

• C09D11/03

  characterised by features other than the chemical nature of the binder · CPC title

• Y10T428/24893

  including particulate material · CPC title

• B29C64/106

  using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material · CPC title

• C09D11/02 Primary

  Printing inks (C09D11/30 takes precedence) · CPC title