Synthesis Of Ceramic Powders From Laser-Heated Gas Phase Reactants

W. R. Cannon; S. C. Danforth; J. H. Flint; J. S. Haggerty; R. A. Marra

doi:10.1117/12.958022

24 January 1980 Synthesis Of Ceramic Powders From Laser-Heated Gas Phase Reactants

W. R. Cannon, S. C. Danforth, J. H. Flint, J. S. Haggerty, R. A. Marra

Proceedings Volume 0198, Laser Applications in Materials Processing; (1980) https://doi.org/10.1117/12.958022
Event: 23rd Annual Technical Symposium, 1979, San Diego, United States

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.

Citation Download Citation

W. R. Cannon, S. C. Danforth, J. H. Flint, J. S. Haggerty, and R. A. Marra "Synthesis Of Ceramic Powders From Laser-Heated Gas Phase Reactants", Proc. SPIE 0198, Laser Applications in Materials Processing, (24 January 1980); https://doi.org/10.1117/12.958022

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