Title: Method for synthesizing powder materials

Abstract

A method for synthesizing ultrafine powder materials, for example, ceramic and metal powders, comprises admitting gaseous reactants from which the powder material is to be formed into a vacuum reaction chamber maintained at a pressure less than atmospheric and at a temperature less than about 400/degree/K (127/degree/C). The gaseous reactants are directed through a glow discharge provided in the vacuum reaction chamber to form the ultrafine powder material. 1 fig.

Inventors:

Buss, R. J.; Ho, P.

Issue Date:

Thu Jan 21 00:00:00 EST 1988

Research Org.:

Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

OSTI Identifier:

6295331

Patent Number(s):

7146628

Application Number:

ON: DE89010890

Assignee:

Dept. of Energy

Patent Classifications (CPCs):

H - ELECTRICITY H04 - ELECTRIC COMMUNICATION TECHNIQUE H04N - PICTORIAL COMMUNICATION, e.g. TELEVISION

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H - ELECTRICITY H04 - ELECTRIC COMMUNICATION TECHNIQUE H04N - PICTORIAL COMMUNICATION, e.g. TELEVISION

H04N21/235 - Processing of additional data, e.g. scrambling of additional data or processing content descriptors
H04N21/23617 - {by inserting additional data into a data carousel, e.g. inserting software modules into a DVB carousel
H04N21/435 - Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
H04N21/4622 - {Retrieving content or additional data from different sources, e.g. from a broadcast channel and the Internet
H04N21/47 - End-user applications {
H04N21/478 - Supplemental services, e.g. displaying phone caller identification, shopping application
H04N21/6118 - {involving cable transmission, e.g. using a cable modem}
H04N21/6168 - {involving cable transmission, e.g. using a cable modem}
H04N21/6405 - Multicasting {
H04N21/6581 - {Reference data, e.g. a movie identifier for ordering a movie or a product identifier in a home shopping application}
H04N21/84 - Generation or processing of descriptive data, e.g. content descriptors {
H04N7/17318 - {Direct or substantially direct transmission and handling of requests}

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DOE Contract Number:  

AC04-76DP00789

Resource Type:

Patent

Country of Publication:

United States

Language:

English

Subject:

36 MATERIALS SCIENCE; CERAMICS; POWDERS; METALS; SYNTHESIS; AMORPHOUS STATE; INVENTIONS; MEDIUM TEMPERATURE; VACUUM SYSTEMS; ELEMENTS; 360101* - Metals & Alloys- Preparation & Fabrication; 360601 - Other Materials- Preparation & Manufacture