초록 ▼

The present invention is directed to methods and apparatus that use electrostatic and/or electromagnetic fields to enhance the process of spray forming preforms or powders. The present invention also describes methods and apparatus for atomization and heat transfer with non-equilibrium plasmas. The

The present invention is directed to methods and apparatus that use electrostatic and/or electromagnetic fields to enhance the process of spray forming preforms or powders. The present invention also describes methods and apparatus for atomization and heat transfer with non-equilibrium plasmas. The present invention is also directed to articles, particularly for use in gas turbine engines, produced by the methods of the invention.

대표청구항 ▼

What is claimed is: 1. A method for atomizing a particle comprising: producing a first molten particle; applying a rapid electrostatic charge to the first molten particle, wherein the rapid electrostatic charge causes the first molten particle to form at least one smaller second molten particle; an

What is claimed is: 1. A method for atomizing a particle comprising: producing a first molten particle; applying a rapid electrostatic charge to the first molten particle, wherein the rapid electrostatic charge causes the first molten particle to form at least one smaller second molten particle; and cooling the second molten particle by producing a non-equilibrium plasma that transfers heat from the second molten particle to a first heat sink, wherein the first heat sink is electrically charged or held at a potential. 2. The method of claim 1, wherein the first molten particle is produced by melting a material in a melt chamber, and expelling the first molten particle through at least one orifice in the melt chamber. 3. The method of claim 1, wherein the rapid electrostatic charge is an arc discharge or an electron beam. 4. The method of claim 1, wherein the non-equilibrium plasma is a glow discharge or a cold corona discharge.