Claims
- 1. A method of forming an object comprising:
- forming agglomerated nanocrystalline material in a size suitable for thermal spraying, said agglomerated nanocrystalline material being formed by milling powder material to nanocrystalline size followed by continued milling, whereby the milling is further controlled such that mechanical welding and alloying of the formed nanocrystalline powder material occurs, thereby forming said agglomerated nanocrystalline material; and
- thermally spraying said agglomerated nanocrystalline material onto a form to form said object characterized at least in part by a nanocrystalline microscopic structure.
- 2. The method of claim 1 wherein forming said agglomerated nanocrystalline material comprises cryomilling said nanocrystalline powder to mechanically alloy said nanocrystalline powder to form said agglomerated nanocrystalline material.
- 3. The method of claim 1 wherein forming said agglomerated nanocrystalline material comprises cryomilling said nanocrystalline powder in an attritor mill to mechanically alloy said nanocrystalline powder to form said agglomerated nanocrystalline material.
- 4. The method of claim 1 wherein forming said agglomerated nanocrystalline material comprises mechanically alloying powder particles of alloyed materials by repeated welding and fracture events at a cryogenic temperature to mechanically alloy said nanocrystalline powder to form said agglomerated nanocrystalline material.
- 5. The method of claim 1 wherein thermally spraying said agglomerated nanocrystalline material to form said object comprises atmospheric plasma spraying.
- 6. The method of claim 1 wherein thermally spraying said agglomerated nanocrystalline material to form said object comprises arc spraying said agglomerated nanocrystalline material to form said object.
- 7. The method of claim 1 wherein thermally spraying said agglomerated nanocrystalline material to form said object comprises detonation gun spraying.
- 8. The method of claim 1 wherein thermally spraying said agglomerated nanocrystalline material to form said object comprises high velocity oxy-fuel spraying.
- 9. The method of claim 1 wherein thermally spraying said agglomerated nanocrystalline material to form said object comprises vacuum plasma spraying.
- 10. The method of claim 1 wherein thermally spraying agglomerated nanocrystalline material to form said object comprises controlled atmosphere plasma spraying.
- 11. The method of claim 1 wherein thermally spraying said agglomerated nanocrystalline material to form said object comprises flame spraying.
- 12. The method of claim 1 wherein thermally spraying said agglomerated nanocrystalline material to form said object comprises forming a coating onto a substrate.
- 13. The method of claim 1 wherein thermally spraying said agglomerated nanocrystalline material to form said object comprises forming a three dimensional object.
- 14. A method for forming a composition of matter comprising:
- forming an agglomerated nanocrystalline material in a size suitable for thermal spraying, said agglomerated nanocrystalline material being formed by milling powder material to nanocrystalline size followed by continued milling, whereby the milling is further controlled such that mechanical welding and alloying of the formed nanocrystalline powder material occurs, thereby forming said agglomerated nanocrystalline material; and
- thermally spraying said agglomerated nanocrystalline material to form said matter which is characterized by a nanocrystalline microscopic structure.
RELATED APPLICATIONS
The present application relates to provisional application 60/033,317 filed Dec. 11, 1996, which is incorporated herein by reference.
Government Interests
This invention was made with support under Grant Numbers N00014-94-1-0017 and N00014-93-1-1072 from the Department of the Navy. Accordingly, the U.S. Government may have certain rights in the invention.
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Ozaki et al. |
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5395422 |
Schulz et al. |
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