Electrically assisted synthesis of particles and film with precisely controlled characteristic
AssigneeUniversity of Cincinnati
InventorsSotiris E. Pratsinis, Srinivas Vemury
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Abstract
The present invention related to methods of manufacturing oxide, nitride, carbide, and boride powders and other ceramic, organic, metallic, carbon and alloy powders and films and their mixtures having well-controlled size and crystallinity characteristics. This invention relates, more particularly, to a development in the synthesis of the ceramic, metallic, composite, carbon and alloy nanometer-sized particles with precisely controlled specific surface area, or primary particle size, crystallinity and composition. The product made using the process of the present invention and the use of that product are also claimed herein.
Claims33
A method of forming nanosized particles, comprising the steps of:
- mixing a vapor-phase or aerosol-phase particle precursor reactant with an additional reactant;
- converting at least a portion of the mixed reactants into product particles by heating the mixed reactants in a reaction area, the particle precursor reactant having a flow path into the reaction area, the converting step including heating the mixed reactants in a flame reactor;
- and
- applying an electric field across the reaction area, the electric field being created by plate electrodes and being substantially perpendicular to the flow path,
- thereby forming nanosized particles.
Dependencies are inferred from the claim text.