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Title: Apparatus for producing nanoscale ceramic powders

Abstract

An apparatus provides high temperature and short residence time conditions for the production of nanoscale ceramic powders. The apparatus includes a confinement structure having a multiple inclined surfaces for confining flame located between the surfaces so as to define a flame zone. A burner system employs one or more burners to provide flame to the flame zone. Each burner is located in the flame zone in close proximity to at least one of the inclined surfaces. A delivery system disposed adjacent the flame zone delivers an aerosol, comprising an organic or carbonaceous carrier material and a ceramic precursor, to the flame zone to expose the aerosol to a temperature sufficient to induce combustion of the carrier material and vaporization and nucleation, or diffusion and oxidation, of the ceramic precursor to form pure, crystalline, narrow size distribution, nanophase ceramic particles.

Inventors:
 [1];  [2];  [3]
  1. Andover, MA
  2. Windham, NH
  3. Little Compton, RI
Issue Date:
OSTI Identifier:
870811
Patent Number(s):
5599511
Application Number:
08/449,665
Assignee:
Physical Sciences, Inc. (Andover, MA)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01P - INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
apparatus; producing; nanoscale; ceramic; powders; provides; temperature; residence; time; conditions; production; confinement; structure; multiple; inclined; surfaces; confining; flame; located; define; zone; burner; employs; burners; provide; close; proximity; delivery; disposed; adjacent; delivers; aerosol; comprising; organic; carbonaceous; carrier; material; precursor; expose; sufficient; induce; combustion; vaporization; nucleation; diffusion; oxidation; form; pure; crystalline; narrow; size; distribution; nanophase; particles; narrow size; inclined surface; inclined surfaces; ceramic powder; apparatus provides; ceramic powders; size distribution; residence time; disposed adjacent; ceramic particles; close proximity; temperature sufficient; ceramic precursor; carrier material; ceramic particle; nanoscale ceramic; phase ceramic; multiple inclined; nanophase ceramic; time conditions; producing nanoscale; confinement structure; /422/75/264/

Citation Formats

Helble, Joseph J, Moniz, Gary A, and Morse, Theodore F. Apparatus for producing nanoscale ceramic powders. United States: N. p., 1997. Web.
Helble, Joseph J, Moniz, Gary A, & Morse, Theodore F. Apparatus for producing nanoscale ceramic powders. United States.
Helble, Joseph J, Moniz, Gary A, and Morse, Theodore F. Wed . "Apparatus for producing nanoscale ceramic powders". United States. https://www.osti.gov/servlets/purl/870811.
@article{osti_870811,
title = {Apparatus for producing nanoscale ceramic powders},
author = {Helble, Joseph J and Moniz, Gary A and Morse, Theodore F},
abstractNote = {An apparatus provides high temperature and short residence time conditions for the production of nanoscale ceramic powders. The apparatus includes a confinement structure having a multiple inclined surfaces for confining flame located between the surfaces so as to define a flame zone. A burner system employs one or more burners to provide flame to the flame zone. Each burner is located in the flame zone in close proximity to at least one of the inclined surfaces. A delivery system disposed adjacent the flame zone delivers an aerosol, comprising an organic or carbonaceous carrier material and a ceramic precursor, to the flame zone to expose the aerosol to a temperature sufficient to induce combustion of the carrier material and vaporization and nucleation, or diffusion and oxidation, of the ceramic precursor to form pure, crystalline, narrow size distribution, nanophase ceramic particles.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1997},
month = {1}
}

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Works referenced in this record:

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