Method and apparatus for making ferrite material products and products produced thereby
AssigneeSteward Advanced Materials, Inc.
InventorsHenry G. Paris, Danny R. Smith
Life of this patent
Estimating the term…
Abstract
A method for making ferrite powder may include providing ferrite feed materials in a form of particles having different sizes and irregular shapes, and exposing the ferrite feed materials to a plasma to provide a more spherical shape to irregularly shaped particles to thereby make the ferrite powder. An apparatus for making ferrite powder may include a feeder for ferrite feed materials and a plasma generator for exposing the ferrite feed materials to a plasma.
Claims43
A method for making ferrite powder comprising:
- providing ferrite feed materials including at least one of nickel ferrite particles, manganese ferrite particles, magnesium ferrite particles, and zinc ferrite particles having different sizes and irregular shapes;
- and
- exposing the ferrite feed materials to a plasma to provide a more spherical shape to irregularly shaped particles to thereby make the ferrite powder.
A method for making a ferrite article comprising:
- providing ferrite feed materials in a form of particles having different sizes and irregular shapes;
- exposing the ferrite feed materials to a plasma to provide a more spherical shape to irregularly shaped particles to thereby make a ferrite powder, and controllably supplying a non-ferrite ceramic precursor to the ferrite feed materials during the exposing;
- and
- forming the ferrite powder into a ferrite article.
A method for making ferrite powder comprising:
- providing ferrite feed materials in a form of particles having different sizes and irregular shapes;
- and
- exposing the ferrite feed materials to a plasma to provide a more spherical shape to irregularly shaped particles to thereby make the ferrite powder, and controllably supplying a calcined ferrite feed material to the ferrite feed materials during the exposing.
Dependencies are inferred from the claim text.