Post-processed nanoscale powders and method for such post-processing
First Claim
Patent Images
1. A method for post-processing agglomerated nanoscale powders comprising:
- selecting agglomerated nanoscale powders;
placing the agglomerated nanoscale powders in a fluid;
adding a reactive media to the fluid;
delivering stress to the agglomerated nanoscale powders in fluid to de-agglomerate the nanoscale powders, wherein the stress delivery is conducted at a temperature less than 0.5 times the melting point of agglomerated nanoscale powders;
collecting the de-agglomerated nanoscale powders.
4 Assignments
0 Petitions
Accused Products
Abstract
Post-processing methods for nanoparticles are disclosed. Methods for real time quality control of nanoscale powder manufacture are discussed. Uses of post-processed particles and consolidation methods are disclosed. Disclosed methods can enable commercial use of nanoscale powders in wide range of nanotechnology applications.
226 Citations
14 Claims
-
1. A method for post-processing agglomerated nanoscale powders comprising:
-
selecting agglomerated nanoscale powders;
placing the agglomerated nanoscale powders in a fluid;
adding a reactive media to the fluid;
delivering stress to the agglomerated nanoscale powders in fluid to de-agglomerate the nanoscale powders, wherein the stress delivery is conducted at a temperature less than 0.5 times the melting point of agglomerated nanoscale powders;
collecting the de-agglomerated nanoscale powders. - View Dependent Claims (2, 3, 4, 5)
-
-
6. A method for post-processing nanoscale powders comprising:
-
selecting nanoscale powders;
bringing the surface water content of the nanoscale powders to a desired value;
hydrolyzing the surface of the nanoscale powder with an organometallic species devoid of silicon; and
collecting the nanoscale powders. - View Dependent Claims (7)
-
-
8. A method for post-processing nanoscale powders comprising:
-
selecting nanoscale powders;
washing the nanoscale powders with an organic acid;
treating the surface of the washed nanoscale powders with a nitrogen-containing organic compound; and
collecting the nanoscale powders. - View Dependent Claims (9)
-
-
10. A method for post-processing nanoscale powders at comprising:
-
selecting nanoscale powders;
coating the nanoscale powders with a substance from the group consisting of organic, inorganic, metallorganic substance;
heating the coated nanoscale powders in an environment having a selected pressure, temperature, and gas composition, wherein the heating step comprises a temperature over time profile; and
holding the nanoscale powders at desired temperature to induce chemical reaction that change the surface composition of the nanoscale powder. - View Dependent Claims (11, 12, 13, 14)
-
Specification