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Title: Process for making silver metal filaments

Abstract

A process for making silver metal particles from silver salt particles having the same morphology. Precursor silver salt particles selected from the group consisting of silver acetate and silver sulfide having a selected morphology are contained in a reactor vessel having means for supporting the particles in an air suspension to prevent the agglomeration of the particles. Air is flowed through the reactor vessel at a flow rate sufficient to suspend the particles in the reactor vessel. The suspended precursor silver salt particles are heated to a processing temperature and at a heating rate below which the physical deterioration of the suspended precursor silver salt particles takes place. The suspended precursor silver salt particles are maintained at the processing temperature for a period of time sufficient to convert the particles into silver metal particles having the same morphology as the precursor silver salt particles.

Inventors:
 [1]
  1. Oak Ridge, TN
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
OSTI Identifier:
870937
Patent Number(s):
US 5626645
Assignee:
United States of America as represented by Department of Energy (Washington, DC)
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
process; silver; metal; filaments; particles; salt; morphology; precursor; selected; consisting; acetate; sulfide; contained; reactor; vessel; means; supporting; air; suspension; prevent; agglomeration; flowed; flow; rate; sufficient; suspend; suspended; heated; processing; temperature; heating; below; physical; deterioration; takes; maintained; period; time; convert; metal particle; salt particles; silver salt; rate sufficient; heating rate; metal particles; time sufficient; reactor vessel; flow rate; silver metal; particles selected; processing temperature; metal filaments; rate below; /75/

Citation Formats

Bamberger, Carlos E. Process for making silver metal filaments. United States: N. p., 1997. Web.
Bamberger, Carlos E. Process for making silver metal filaments. United States.
Bamberger, Carlos E. 1997. "Process for making silver metal filaments". United States. https://www.osti.gov/servlets/purl/870937.
@article{osti_870937,
title = {Process for making silver metal filaments},
author = {Bamberger, Carlos E},
abstractNote = {A process for making silver metal particles from silver salt particles having the same morphology. Precursor silver salt particles selected from the group consisting of silver acetate and silver sulfide having a selected morphology are contained in a reactor vessel having means for supporting the particles in an air suspension to prevent the agglomeration of the particles. Air is flowed through the reactor vessel at a flow rate sufficient to suspend the particles in the reactor vessel. The suspended precursor silver salt particles are heated to a processing temperature and at a heating rate below which the physical deterioration of the suspended precursor silver salt particles takes place. The suspended precursor silver salt particles are maintained at the processing temperature for a period of time sufficient to convert the particles into silver metal particles having the same morphology as the precursor silver salt particles.},
doi = {},
url = {https://www.osti.gov/biblio/870937}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1997},
month = {1}
}

Works referenced in this record:

The Growth of Silver Whiskers by Reduction of Silver Halogenides
journal, January 1993


Acicular crystals of sodium tungsten bronzes
journal, August 1993


The pseudomorphic conversion of acicular crystals of sodium tungsten bronze into WC/W
journal, January 1994


The growth and morphology of silver whiskers
journal, October 1974