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Proceedings Paper

Synthesis Of Ceramic Powders From Laser-Heated Gas Phase Reactants
Author(s): W. R. Cannon; S. C. Danforth; J. H. Flint; J. S. Haggerty; R. A. Marra
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Paper Abstract

A process has been developed by which ideal ceramic powders are synthesized from CO2 laser heated gas phase reactants. Silicon nitride and silicon powders are formed from mixtures of silane and ammonia or silane gases respectively. The resulting powders are spherical, nearly equal diameter, small particle size, high purity and loosely agglomerated. In addition to achieving these ideal characteristics for powder densification processes, the synethesis process is extremely efficient from the criteria of materials utilization and energy consumption per unit mass of powder. The process has been analyzed and modelled; powders have been characterized extensively.

Paper Details

Date Published: 24 January 1980
PDF: 8 pages
Proc. SPIE 0198, Laser Applications in Materials Processing, (24 January 1980); doi: 10.1117/12.958022
Show Author Affiliations
W. R. Cannon, Massachusetts Institute of Technology (United States)
S. C. Danforth, Massachusetts Institute of Technology (United States)
J. H. Flint, Massachusetts Institute of Technology (United States)
J. S. Haggerty, Massachusetts Institute of Technology (United States)
R. A. Marra, Massachusetts Institute of Technology (United States)

Published in SPIE Proceedings Vol. 0198:
Laser Applications in Materials Processing
John F. Ready, Editor(s)

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